水

#include <iostream>
using namespace std;
int main() {
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    cout << ((c * 60 + d) - (a * 60 + b)) / 60 << " " << ((c * 60 + d) - (a * 60 + b)) % 60;
    return 0;
}