foo.c: In function 'main':
foo.c:5:9: warning: statement with no effect [-Wunused-value]
    5 |         scanf
      |         ^~~~~
foo.c:5:14: error: expected ';' before 'return'
    5 |         scanf
      |              ^
      |              ;
    6 |         return 0
      |         ~~~~~~

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