#include <bits/stdc++.h>

using namespace std;

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

    set<int> ans = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
    for (int i = 0; i < N; ++i) {
        int a, b, c, d;
        string s;
        cin >> a >> b >> c >> d >> s;

        set<int> st = {a, b, c, d};
        if (s == "YES") {
            vector<int> vt;
            set_intersection(ans.begin(), ans.end(),
                             st.begin(), st.end(), back_inserter(vt));
            ans.clear();
            for (auto x:vt) ans.insert(x);
        } else {
            ans.erase(a);
            ans.erase(b);
            ans.erase(c);
            ans.erase(d);
        }
    }

    for (auto x:ans) cout << x << endl;
    return 0;
}