//#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
//using namespace atcoder;
using ll = long long;
#define all(A) A.begin(),A.end()
using vll = vector<ll>;
#define rep(i, n) for (long long i = 0; i < (long long)(n); i++)
using Graph = vector<vector<ll>>;
Graph G;
vll dist;
vector<bool> seen;
ll gcd(ll(a), ll(b)) {
	ll c = a;
	while (a % b != 0) {
		c = a % b;
		a = b;
		b = c;
	}
	return b;
}
int main() {
	ll N;
	cin>>N;
	vector<bool> AN(10,true);
	rep(i,N){
		ll A,B,C,D;
		string R;
		cin>>A>>B>>C>>D>>R;
		if(R=="YES"){
			rep(k,10){
				if(k!=A&&k!=B&&k!=C&&k!=D)AN[k]=false;
			}
		}
		else{
			rep(k,10){
				if(k==A||k==B||k==C||k==D)AN[k]=false;
			}
		}

	}
	rep(i,10){
		if(AN[i])cout<<i<<endl;
	}
	
}