C++ :

#include<bits/stdc++.h>
using namespace std;
int d1,t1,d2,t2;
int main()
{
	cin>>d1>>t1>>d2>>t2;
	int w=d2-d1;
	w*=24;
	int t=w+t2-t1;
	cout<<t<<endl;
	if(t<=72) cout<<"YES";
	else cout<<"NO";
    return 0;
}