import java.util.Arrays;
import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int [][]x = new int[N][4];
		String []s = new String[N];

		for(int i = 0; i < N; i++) {
			for(int j = 0; j < 4; j++) {
				x[i][j] = scan.nextInt();
			}
			s[i] = scan.next();
		}
		scan.close();
		int []state = new int[10];
		Arrays.fill(state, 0);
		int k = 0;
		for(int i = 0; i < N; i++) {
			if(s[i].equals("YES")) {
				k = 1;
			}else {
				k = -1;
			}
			for(int j = 0; j < 4; j++) {
				state[x[i][j]] += k;
			}
		}
		int max = state[0];
		int ans = 0;
		for(int i = 1; i < 10; i++) {
			if(max < state[i]) {
				ans = i;
				max = state[i];
			}
		}
		System.out.println(ans);
	}
}