foo.c:1:1: warning: data definition has no type or storage class
    1 | numbers=[a,b,c]
      | ^~~~~~~
foo.c:1:1: warning: type defaults to 'int' in declaration of 'numbers' [-Wimplicit-int]
foo.c:1:9: error: expected expression before '[' token
    1 | numbers=[a,b,c]
      |         ^
foo.c:1:10: error: 'a' undeclared here (not in a function)
    1 | numbers=[a,b,c]
      |          ^
foo.c:1:12: error: 'b' undeclared here (not in a function)
    1 | numbers=[a,b,c]
      |            ^
foo.c:1:11: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    1 | numbers=[a,b,c]
      |           ^
foo.c:1:14: error: 'c' undeclared here (not in a function)
    1 | numbers=[a,b,c]
      |              ^
foo.c:1:13: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    1 | numbers=[a,b,c]
      |             ^

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