/in/foo.c: In function 'main':
/in/foo.c:22:17: warning: format '%S' expects argument of type 'wchar_t *', but argument 2 has type 'char *' [-Wformat=]
   22 |         scanf("%S",str);
      |                ~^  ~~~
      |                 |  |
      |                 |  char *
      |                 int *
      |                %hhd