#include <stdio.h>

int main()
{
	int firstnum;
	int secondnum;
	int returnvalue;

	while (1) {
		printf ("What is the first number?");
		scanf ("%d", &firstnum);

		printf ("What is the second number?");
		scanf ("%d", &secondnum);

		returnvalue = operate (firstnum, secondnum);
		printf ("My function returned %d\n", returnvalue);
	}
}

int operate (int a, int b)
{
	return (a * 100 + b);
}