#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ul;
typedef signed long long ll;
ul over = 1000000007;

int main(void)
{
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << fixed;
  int n;
  cin >> n;
  bool chance[10];
  fill(chance, chance+10, true);
  for (int i = 0; i < n; ++i) {
    int a, b, c, d;
    string r;
    cin >> a >> b >> c >> d >> r;
    if (r=="YES") {
      for (int i = 0; i < 10; ++i) {
        if (i!=a && i!=b && i!=c && i!=d) chance[i] = false;
      }
    } else {
      chance[a] = false; chance[b] = false; chance[c] = false; chance[d] = false;
    }
  }
  for (int i = 0; i < 10; ++i) {
    if (chance[i]) cout << i << endl;
  }
  return 0;
}