#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
#define MP(a,b) make_pair(a,b)
int main() {
	ios::sync_with_stdio ( false );
	int a, b, c, d;
	scanf ( "%d%d%d%d", &a, &b, &c, &d );
	int begin = a * 60 + b;
	int end = c * 60 + d;
	int time = end - begin;
	printf ( "%d %d", time / 60, time % 60 );
	return 0;
}