foo.c: In function 'main':
foo.c:6:10: error: stray '\357' in program
  return 0；
          ^
foo.c:6:11: error: stray '\274' in program
  return 0；
           ^
foo.c:6:12: error: stray '\233' in program
  return 0；
            ^
foo.c:7:1: error: expected ';' before '}' token
 }
 ^

[Hydro](https://hydro.ac)提供评测服务