#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,c,d,e,f,g;
	cin>>a>>b>>c>>d;
	g=(60*c+d)-(60*a+b);
	e=g/60;
	f=g%60;
	cout<<e<<" "<<f;
	return 0;
}