#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,c,d,e,f,ans;
	cin>>a>>b>>c>>d;
	ans=(c*60+d)-(a*60+b);
	e=ans/60;
	f=ans%60;
	cout<<e<<" "<<f;
}



/**************************************************************
	Problem: 1462
	User: zhuangsongyu
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2072 kb
****************************************************************/