#include <iostream>
#include <vector>
#include <algorithm>
#include <math.h>

#define ALL(x) (x).begin(),(x).end()

using namespace std;

int main(){
    int n;
    cin >> n;
    vector<bool> ans(10,true);
    for(int i = 0;i < n;i++){
        int a,b,c,d;
        string r;
        cin >> a >> b >> c >> d >> r;
        if(r == "NO"){
            ans[a] = false;
            ans[b] = false;
            ans[c] = false;
            ans[d] = false;
        }
        else if(r == "YES"){
            for(int i = 0;i < 10;i++){
                if(!(i == a || i == b || i == c || i == d))ans[i] = false;
            }
        }
    }
    for(int i = 0;i < 10;i++){
        if(ans[i])cout << i << endl;
    }
    return 0;
}