#include<iostream>
#include<iomanip>
#include<cmath>
#include<string>
#include<algorithm>
#include<vector>
#include<math.h>

using namespace std;
int main(){
    int N; cin >> N;
    int A, B, C, D;
    string ans;
    vector<int> v;
    for(int i = 0; i < 10; i++){
        v.push_back(i);
    }
    for(int i = 0; i < N; i++){
        cin >> A >> B >> C >> D >> ans;
        if(ans == "NO"){
            v[A] = -1; v[B] = -1;
            v[C] = -1; v[D] = -1;
        }else if(ans == "YES"){
            for(int i = 0; i < 10; i++){
                if(i != A && i !=B && i!=C && i!=D){
                    v[i] = -1;
                }
            }
        }
    }
    for(int i = 0; i < 10; i++){
        if(v[i] != -1){
            cout << v[i] << endl;
        }
    }
    return 0;
    }