/in/foo.c: In function 'main':
/in/foo.c:17:19: error: unknown type name '\U0000ff09'
   17 |     char str[100];）
      |                   ^~
/in/foo.c:18:11: error: expected declaration specifiers or '...' before string constant
   18 |     scanf("%s", str);
      |           ^~~~
/in/foo.c:18:17: error: expected declaration specifiers or '...' before 'str'
   18 |     scanf("%s", str);
      |                 ^~~