#include<iostream>
#include<vector>
#include<string>
class Player
{
public:
	std::string name;
	long long int point;
	char hand;
};
int main()
{
	std::vector<Player> player(2);
	for (int i = 0;i < 2;i++)
	{
		std::cin >> player[i].name;
		std::cin >> player[i].point;
		std::cin >> player[i].hand;
	}
	if (player[0].point > player[1].point)
	{
		std::cout << player[0].name;
	}
	else if (player[0].point < player[1].point)
	{
		std::cout << player[1].name;
	}
	else
	{
		std::cout << -1;
	}
	return 0;
}