#include "bits/stdc++.h"
using namespace std;

int main() {
	int N, A, B, C, D;
	string R;
	bool NUM[10];
	cin >> N;
	for (int i = 0; i < 10; i++) {
		NUM[i] = true;
	}
	for (int i = 0; i < N; i++) {
		cin >> A >> B >> C >> D >> R;
		if (R == "YES") {
			for (int j = 0; j < 10; j++) {
				if (j != A && j != B && j != C && j != D) {
					NUM[j] = false;
				}
			}
		}
		else {
			NUM[A] = false, NUM[B] = false, NUM[C] = false, NUM[D] = false;
		}
	}
	for (int i = 0; i < 10; i++) {
		if (NUM[i]) cout << i << endl;
	}
}