#include <stdio.h>
int sum(int m, int n) {
    return m + n;
}

int func(int n) {
    if (n < 0) {
        n = -n;
    }
    return n;
}

int main(void) {
    int l, m = -2, n = 3;
    l = sum(func(m), func(n));
    printf("%dの絶対値と%dの絶対値の和は%d\n", m, n, l);
    return 0;
}