poj1006

枚举

//poj1006
#include <iostream>
using namespace std;

int        a, b, c, d, t, dd;

void work()
{
    a %= 23;
    b %= 28;
    c %= 33;
    dd = d;
    while (1)
    {
        d++;
        if (d % 23 == a && d % 28 == b && d % 33 == c)
        {
            printf("Case %d: the next triple peak occurs in %d days.\n", t, d - dd);
            return;
        }
    }
}

int main()
{
    //freopen("t.txt", "r", stdin);
    t = 0;
    while (cin >> a >> b >> c >> d)
    {
        t++;
        if (a == -1 && b == -1 && c == -1 && d == -1)
            break;
        work();
    }
    return 0;
}