#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)
#define co(x) cout << (x) << "\n"
#define cosp(x) cout << (x) << " "
#define ce(x) cerr << (x) << "\n"
#define cesp(x) cerr << (x) << " "
#define pb push_back
#define mp make_pair
#define Would
#define you
#define please


int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);


	int N;
	cin >> N;
	int A[6][4];
	string S[6];
	rep(i, N) {
		rep(ii, 4) cin >> A[i][ii];
		cin >> S[i];
	}

	int OK[10];
	rep1(i, 9) OK[i] = 1;
	rep(i, N) {
		int kari[10] = {};
		rep(j, 4) kari[A[i][j]] = 1;
		rep1(j, 9) {
			if (S[i] == "YES" && kari[j] == 0) OK[j] = 0;
			if (S[i] == "NO" && kari[j] == 1) OK[j] = 0;
		}
	}

	rep1(i, 9) if (OK[i]) co(i);

	Would you please return 0;
}