#include<iostream>
#include<string>
using namespace std;

bool num[10];
int main(void){
	int N;
	int input[10];
	int n;
	for (int i = 0; i < 10; i++){
		num[i] = true;
		input[i] = -1;
	}
	cin >> N;

	string str;
	for (int j = 0; j < N; j++){
		for (int i = 0; i < 4; i++){
			cin >> n;
			input[n] = j;
		}
		cin >> str;
		if (str == "YES")
			for (int i = 0; i < 10; i++){
				num[i] &= (input[i] == j);
			}
		else
			for(int i = 0; i < 10; i++){
				num[i] &= (input[i] != j);
		}
	}
	for (int i = 0; i < 10; i++){
		if (num[i])cout << i << endl;
	}
	return 0;
}