#include<bits/stdc++.h> using namespace std; int main() { int a,b,c,d,e,f,g,h; double i; cin>>a>>b>>c>>d; a=a60; c=c60; e=a+b; f=c+d; g=f-e; h=g/60; i=g%60; cout<<h<<" "<<i; return 0; }