#include <stdio.h>
//練習問題B


int sum(int m, int n)
{
    int l;
    l = m + n;
    return l;
}


int main(void) 
{
	int l, n = 2, m = 3;
    l=sum(m,n);
    printf("%dと%dの和は%d\n", m,n, l);
	return 0;
}