poj2304

简单题

#include <iostream>

#include <cstdlib>

#include <cstring>

#include <cstdio>

using namespace std;



int a, b, c, d;



int cal(int a)

{

    return (a + 40) % 40;

}



int main()

{

    while (scanf("%d%d%d%d", &a, &b, &c, &d), a | b | c | d)

    {

        int ans = cal(a - b) + cal(c - b) + cal(c - d) + 120;

        ans *= 9;

        printf("%d\n", ans);

    }

    return 0;

}

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