foo.c:1:1: warning: data definition has no type or storage class
    1 | l8,89
      | ^~
foo.c:1:1: warning: type defaults to 'int' in declaration of 'l8' [-Wimplicit-int]
foo.c:1:4: error: expected identifier or '(' before numeric constant
    1 | l8,89
      |    ^~

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