/in/foo.cc:8:11: error: stray '\357' in program
  cout<<a%4；
           ^
/in/foo.cc:8:12: error: stray '\274' in program
  cout<<a%4；
            ^
/in/foo.cc:8:13: error: stray '\233' in program
  cout<<a%4；
             ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:9:1: error: expected ';' before '}' token
 }
 ^