#include <iostream>
using namespace std;

int main() {
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    int startMinutes = a * 60 + b;
    int endMinutes = c * 60 + d;
    int totalMinutes = endMinutes - startMinutes;
    int hours = totalMinutes / 60;
    int minutes = totalMinutes % 60;
    cout << hours << " " << minutes << endl;
    return 0;
}

/**************************************************************
	Problem: 1462
	User: fuhoubin
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/