#include <stdio.h>
//練習問題B
 
int sum(int m, int n) {
    return m + n;  // mとnの和を返す
}
 
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;
}
 
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