/in/foo.cc:8:18: error: stray '\357' in program
  scanf("%d,%d",&a，&b);
                  ^
/in/foo.cc:8:19: error: stray '\274' in program
  scanf("%d,%d",&a，&b);
                   ^
/in/foo.cc:8:20: error: stray '\214' in program
  scanf("%d,%d",&a，&b);
                    ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:8:21: error: invalid operands of types 'int*' and 'int' to binary 'operator&'
  scanf("%d,%d",&a，&b);
                ~~~~~^~