#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;
}