package yukicoder;

import java.math.BigInteger;
import java.util.Scanner;

public class Yuki201 {
	
	public static void main(String[] args) {
		
		Scanner scan = new Scanner(System.in);

		String name = scan.next();
		String point = scan.next();
		String R = scan.next();
		String name2 = scan.next();
		String point2 = scan.next();
		String R2 = scan.next();
		scan.close();
		
		BigInteger bigint =  new BigInteger(point);
		BigInteger bigint2 =  new BigInteger(point2);
		int ans = bigint.compareTo(bigint2); 
		
		if(ans == 1){
			System.out.println(name);
		}else if( ans == -1){
			System.out.println(name2);
		}else {
			System.out.println(-1);
		}		
	}

}