src.c:1:16: error: empty character constant
text=str(input(''))
^
src.c:1:6: error: initializer element is not constant
text=str(input(''))
^
src.c:2:1: error: expected ',' or ';' before 't'
t=text.replace('Dr.','')
^
src.c:2:22: error: empty character constant
t=text.replace('Dr.','')
^