import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] x = new int[10];
		for(int i = 0 ; i < n ; i++) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			int c = sc.nextInt();
			int d = sc.nextInt();
			String e = sc.next();
			if(e.equals("YES")) {
				x[a]++; x[b]++; x[c]++; x[d]++;
			} else {
				x[a] -= 100; x[b] -= 100; x[c] -= 100; x[d] -= 100;
			}
		}
		int ans = -1; int point = -1;
		for(int i = 0 ; i < 10 ; i++) {
			if(x[i] > point) {
				ans = i;
				point = x[i];
			}
		}
		System.out.println(ans);
 	}
}