#include <bits/stdc++.h>
using namespace std;

int main(void) {
string sa,ja;
string sb,jb;
long long ua,ub;
cin>>sa>>ua>>ja;
cin>>sb>>ub>>jb;

if(ua>ub){
	cout<<sa<<endl;
}else if(ua<ub){
	cout<<sb<<endl;
}else{
	cout<<-1<<endl;
}
}