#include <iostream>
using namespace std;

int mian()
{
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    int x = c - a, y = d - b;
    if (y < 0)
    {
        x--;
        y += 60;
    }
    cout << x << " " << y << endl;
    return 0;
}