/in/foo.cc:7:5: error: stray '\357' in program
  for（ int i=1;i<=n;i++)
     ^
/in/foo.cc:7:6: error: stray '\274' in program
  for（ int i=1;i<=n;i++)
      ^
/in/foo.cc:7:7: error: stray '\210' in program
  for（ int i=1;i<=n;i++)
       ^
/in/foo.cc: In function 'int mian()':
/in/foo.cc:7:9: error: expected '(' before 'int'
  for（ int i=1;i<=n;i++)
         ^~~
/in/foo.cc:11:2: error: 'cou' was not declared in this scope
  cou<<s;
  ^~~
/in/foo.cc:11:2: note: suggested alternative: 'cos'
  cou<<s;
  ^~~
  cos