#include <stdio.h>

int add(int x, int y)
{
	printf("%d",x+y);
	return x+y;
}

int multiply(int x, int y)
{
	int result;
	result = x*y;
	printf("%d * %d = %d\n", x, y, result);
	return result;
}

int multiply_s(int x, int y)
{
	return x*y;
}

int main()
{
	int z;
	int z2;
	z = multiply(2,3);
	z2 = multiply_s(200, 400);
	printf("%d, %d", z, z2);
	return 0;
}