#include<iostream>
using namespace std;
int main()
{
int a , b , c , d = 0;
cin>>a>>b>>c>>d;
int E = (c*60+d) - (a*60+b);
    if(E >= 60)
    {
        cout<<c-a<<" "<<E % 60;
    }
    else
    {
        cout<<"0 "<< E;
    }
}