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I dont know why I put the return statement there with the value of 0, meaning success a tutorial told me.
Should I take out the return statement? Is this function actually returning a value? well, is the value "Hellow wolrd and 'puts' for the main function?
Is that what the main function returns? the words?
What if I put void there, will there be a return statement? What is the value of the function! I did not put a void!