/in/foo.c: In function 'main':
/in/foo.c:19:9: error: case label not within a switch statement
   19 |         case 2:
      |         ^~~~
/in/foo.c: At top level:
/in/foo.c:24:20: error: expected identifier or '(' before 'return'
   24 |                    return 0;}
      |                    ^~~~~~
/in/foo.c:24:29: error: expected identifier or '(' before '}' token
   24 |                    return 0;}
      |                             ^