foo.cc:28:5: error: redefinition of 'int main()'
   28 | int main()
      |     ^~~~
foo.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~
foo.cc:53:5: error: redefinition of 'int main()'
   53 | int main()
      |     ^~~~
foo.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~
foo.cc:78:5: error: redefinition of 'int main()'
   78 | int main()
      |     ^~~~
foo.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~
foo.cc:103:5: error: redefinition of 'int main()'
  103 | int main()
      |     ^~~~
foo.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~
foo.cc:128:5: error: redefinition of 'int main()'
  128 | int main()
      |     ^~~~
foo.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~

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