#include <iostream>
#include <vector>
#include <algorithm>

bool is_possible(int &x,
                 std::vector<std::pair<std::vector<int>, bool>> &data) {
    for (const auto &[V, R]: data) {
        bool exist = std::any_of(V.begin(), V.end(), [&x](int v) { return v == x; });
        if (exist != R) { return false; }
    }
    return true;
}

int main() {
    int N;
    std::cin >> N;
    std::vector<std::pair<std::vector<int>, bool>> data(N);
    for (int i = 0; i < N; i++) {
        std::vector<int> V(4);
        for (int j = 0; j < 4; j++) {
            std::cin >> V.at(j);
        }
        std::string R;
        std::cin >> R;
        bool flag = (R == "YES");
        data.at(i) = {V, flag};
    }
    for (int x = 0; x < 10; x++) {
        if (is_possible(x, data)){
            std::cout << x << std::endl;
        }
    }
}