#include <iostream>
#include <vector>
#include <string>
#include <array>
#include <queue>
#include <deque>
#include <set>
#include <list>
#include <map>
#include <stack>
#include <utility>
#include <algorithm>
#include <numeric>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cctype>
#include <cstring>
#include <climits>
#include <bitset>
#include <random>
#include <functional>
#include <sstream>
#include <iomanip>

using namespace std;

#define _CRT_SECURE_NO_WARNINGS
#define REP(i, n) for(int i=0; i<(n); i++)
#define FOR(i, m, n) for(int i=(m);i<(n);i++)
#define SZ(x) ((int)(x).size())
#define ALL(x) (x).begin(),(x).end())
#define SORT(x) sort((x).begin(),(x).end())
#define REVE(x) reverse((x).begin(),(x).end())
#define MP make_pair
#define PB push_back

typedef vector<int> VI;
typedef vector<string> VS;
typedef vector<vector<int>> VVI;
typedef pair<int, int> PII;
typedef long long LL;

int main(){
	int n;
	cin >> n;
	vector<bool> flag(10, true);
	REP(i, n) {
		int a, b, c, d;
		string r;
		cin >> a >> b >> c >> d >> r;

		if (r == "YES") {
			REP(i,10){
				if (i != a && i != b && i != c && i != d)flag[i] = false;
			}
		}
		if (r == "NO") {
			flag[a] = false;
			flag[b] = false;
			flag[c] = false;
			flag[d] = false;
		}

	}
	REP(i,10){
		if (flag[i])cout << i << endl;
	}
}