/in/foo.cc:7:5: error: stray '\357' in program
  for（i=1;i<=n;i++){
     ^
/in/foo.cc:7:6: error: stray '\274' in program
  for（i=1;i<=n;i++){
      ^
/in/foo.cc:7:7: error: stray '\210' in program
  for（i=1;i<=n;i++){
       ^
/in/foo.cc:3:2: error: expected ';' before 'int'
  int mian (){
  ^~~
/in/foo.cc: In function 'int mian()':
/in/foo.cc:7:8: error: expected '(' before 'i'
  for（i=1;i<=n;i++){
        ^
/in/foo.cc:7:8: error: 'i' was not declared in this scope
/in/foo.cc:10:2: error: 'cou' was not declared in this scope
  cou<<s;
  ^~~
/in/foo.cc:10:2: note: suggested alternative: 'cos'
  cou<<s;
  ^~~
  cos