#include <bits/stdc++.h>
#ifdef _DEBUG
#include "debug.hpp"
#else
#define debug(...)
#endif
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define precise(i) fixed << setprecision(i)
using ill = int64_t;
using ull = uint64_t;
using namespace std;

void solve() {
  int loop;
  cin >> loop;
  int nums[10]{0};
  vector<int> inputs;

  while (loop--) {
    inputs.clear();
    rep(_, 4) {
      int n;
      cin >> n;
      inputs.push_back(n);
    }

    string guess;
    cin >> guess;
    if (guess == "YES") {
      for (const auto i : inputs) nums[i]++;
    } else {
      for (const auto i : inputs) nums[i]--;
    }
  }

  for (int i = 0; i < 10; i++) {
    if (nums[i] == 2) {
      cout << i << '\n';
      return;
    }
  }

  for (int i = 0; i < 10; i++) {
    if (nums[i] == 0) {
      cout << i << '\n';
      return;
    }
  }

  return;
}

void wrapper() {
  int loop;
  cin >> loop;
  rep(i, loop) {
    cout << "[TEST " << i + 1 << "]\n";
    solve();
    cout << "\n";
  }
}

int main() {
  fastIO;
#ifdef _DEBUG
  wrapper();
#else
  solve();
#endif
}