foo.cc: In function 'int main()':
foo.cc:8:2: error: 'num' was not declared in this scope; did you mean 'enum'?
    8 |  num=0;
      |  ^~~
      |  enum
foo.cc:29:17: error: expected ';' before '}' token
   29 |     printf("\n")
      |                 ^
      |                 ;
   30 |   }
      |   ~              

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