/in/foo.c: In function 'shu':
/in/foo.c:43:5: error: stray '\357' in program
  if （sumf+sumz<4）return 0;
     ^
/in/foo.c:43:6: error: stray '\274' in program
  if （sumf+sumz<4）return 0;
      ^
/in/foo.c:43:7: error: stray '\210' in program
  if （sumf+sumz<4）return 0;
       ^
/in/foo.c:43:8: error: expected '(' before 'sumf'
  if （sumf+sumz<4）return 0;
        ^~~~
/in/foo.c:43:8: warning: statement with no effect [-Wunused-value]
/in/foo.c:43:19: error: stray '\357' in program
  if （sumf+sumz<4）return 0;
                   ^
/in/foo.c:43:20: error: stray '\274' in program
  if （sumf+sumz<4）return 0;
                    ^
/in/foo.c:43:21: error: stray '\211' in program
  if （sumf+sumz<4）return 0;
                     ^
/in/foo.c:49:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^