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