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

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