/in/foo.c:1:1: error: expected identifier or '(' before 'if'
    1 | if a%2==0:
      | ^~
/in/foo.c:2:11: warning: multi-character character constant [-Wmultichar]
    2 |     print('ou')
      |           ^~~~
/in/foo.c:4:15: warning: multi-character character constant [-Wmultichar]
    4 |         print('ji')
      |               ^~~~