#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
using namespace std;

int main()
{
    int n;
    cin >> n;

    bitset<10> ret;
    ret.flip();
    for(int i=0; i<n; ++i){
        bitset<10> bs;
        for(int j=0; j<4; ++j){
            int a;
            cin >> a;
            bs[a] = true;
        }

        string s;
        cin >> s;
        if(s == "YES")
            ret &= bs;
        else
            ret &= ~bs;
    }

    for(int i=0; i<10; ++i){
        if(ret[i])
            cout << i << endl;
    }

    return 0;
}