src.c: In function 'main':
src.c:5:5: error: 'a' undeclared (first use in this function)
a=int(input());
^
src.c:5:5: note: each undeclared identifier is reported only once for each function it appears in
src.c:5:7: error: expected expression before 'int'
a=int(input());
^
src.c:6:5: error: 'b' undeclared (first use in this function)
b=int(input());
^
src.c:6:7: error: expected expression before 'int'
b=int(input());
^
src.c:7:5: error: 'c' undeclared (first use in this function)
c=int(input());
^
src.c:7:7: error: expected expression before 'int'
c=int(input());
^
src.c:9:5: error: expected ';' at end of input
printf
^
src.c:9:5: error: expected declaration or statement at end of input