#include <bits/stdc++.h>

using namespace std;

int main() {
    int a, b, c, d, e, f;
    cin >> a >> b >> c >> d;

    e = c - a;
    if (d - b < 0) {
        e--;
        d += 60;
        f = d - b;
    }
    cout << e << " " << f << endl;
    return 0;
}