#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define INF32 2147483647
#define ALL(x) x.begin(), x.end()
vector<int> ddx = {0, 1, 0, -1, 1, 1, -1, -1};
vector<int> ddy = {1, 0, -1, 0, 1, -1, -1, 1};


int main() {
  int n;cin>>n;
  vector<bool> ans(10,true);
  rep(i,n){
    vector<int> a(4);
    rep(i,4)cin>>a.at(i);
    string yn;cin>>yn;
    if(yn == "NO"){
      rep(i,4){
        ans.at(a.at(i)) = false;
      }
    }else if(yn == "YES"){
      rep(i,10){
        bool ok = true;
        rep(j,4){
          if(i == a.at(j)){
            ok = false;
          }
        }
        if(ok) ans.at(i) = false;
      }
    }
  }
  rep(i,ans.size()){
    if(ans.at(i))cout<< i << endl;
  }
  return 0;
}