foo.c: In function 'main':
foo.c:5:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    5 |         scanf("")
      |         ^~~~~
foo.c:5:15: warning: zero-length gnu_scanf format string [-Wformat-zero-length]
    5 |         scanf("")
      |               ^~
foo.c:5:18: error: expected ';' before '}' token
    5 |         scanf("")
      |                  ^
      |                  ;
    6 | 
    7 | }
      | ~                 

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