package m.shin;
import java.util.Scanner;
public class Con24 {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int[] t = new int[10];
		int N = s.nextInt();
		for(int i = 0;i < N;i++){
			int a = s.nextInt() , b = s.nextInt() , c = s.nextInt() , d = s.nextInt() , add = -1;
			if(s.next().equals("YES")){
				add = 1;
			}
			t[a] += add;
			t[b] += add;
			t[c] += add;
			t[d] += add;
		}
		N = 0;
		for(int i = 0;i < 10;i++){
			if(t[i] >= t[N]){
				N = i;
			}
		}
		System.out.println(N);
	}

}