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

class stetas{
    private:
    public:
    string name;
    unsigned long long int point=0;
    char hand;
};

int main(){
    stetas player[2];
    for(int i=0;i<2;i++){
        cin>>player[i].name;
        cin>>player[i].point;
        cin>>player[i].hand;
    }
    if(player[0].point>player[1].point){
      cout<<player[0].name;
    }else if(player[1].point>player[0].point){
      cout<<player[1].name;
    }else{
        cout<<-1;
    }
    
    return 0;
}