/in/foo.c: In function 'main':
/in/foo.c:7:17: error: stray '\357' in program
  printf("%d\n",a＋b);
                 ^
/in/foo.c:7:18: error: stray '\274' in program
  printf("%d\n",a＋b);
                  ^
/in/foo.c:7:19: error: stray '\213' in program
  printf("%d\n",a＋b);
                   ^
/in/foo.c:7:20: error: expected ')' before 'b'
  printf("%d\n",a＋b);
                    ^