prog1.c

#include <stdio.h>
#include <stdlib.h>

void print_message()
{
	printf("This is the print_message function!\nYou are welcome here!");
}

int main()
{
	int a = 5;
	int b = 7;
	int c = 3;
	int d = 1;
	
	int res = a*c;
	res-=d;
	res/=b;

	printf("%d\n", res);

	print_message();	
}