#include<iostream>
using namespace std;
int main(){
int h1,m1,h2,m2;
while(cin>>h1>>m1>>h2>>m2){
int sum;
if(h2>h1) sum=(h2*60+m2) -(h1*60+m1);
else if(h2<h1) sum=(h2+24)*60+m2 -(h1*60+m1);
else
if(m2>=m1) sum=h2*60+m2 -(h1*60+m1);
else sum=(h2+24)*60+m2 -(h1*60+m1);
cout<<sum/60<<" "<<sum%60<<endl;
}
}