Traceback (most recent call last): File "src.py", line 8, in <module> sum=f(n) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 7, in f return f(n-1) f(n-2) File "src.py", line 4, in f if n == 1 or n==2: RecursionError: maximum recursion depth exceeded