/in/foo.cc:5:7: error: stray '\357' in program
  int a，b;
       ^
/in/foo.cc:5:8: error: stray '\274' in program
  int a，b;
        ^
/in/foo.cc:5:9: error: stray '\214' in program
  int a，b;
         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:5:10: error: expected initializer before 'b'
  int a，b;
          ^
/in/foo.cc:6:7: error: 'a' was not declared in this scope
  cin>>a>>b;
       ^
/in/foo.cc:6:10: error: 'b' was not declared in this scope
  cin>>a>>b;
          ^