// comments with // or /* */
#include <stdio.h>

/* this is a 
multi-line 
		comment
		*/

// #define enables avoiding magic numbers
#define MY_NUMBER 42

//const int MY_NUMBER = 43;

int main()
{
	printf("Hello %d!\n", MY_NUMBER);

	return 0;
}

// #include literally includes another file
// - gives us access to common functions when including libraries