//inlclude前用define 
#define _USE_MATH_DEFINES

//include
#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<cmath>

using namespace std;
//typedef
typedef vector<int> VI;
typedef vector<string> VS;
typedef vector<char> VC;

int main() {
	int num;
	VI y(10), n(10);
	cin >> num;
	VI a(num), b(num), c(num), d(num);
	int cnt=0,memo;
	VS r(num);
	for (int i = 0; i < num; i++) {
		cin >> a[i] >> b[i] >> c[i] >> d[i] >> r[i];
	}
	for (int i = 0; i < num; i++) {
		
		cnt = 0;
		memo = 0;
		if (r[i] == "NO") {
			n[a[i]]++; 
			n[b[i]]++;
			n[c[i]]++; 
			n[d[i]]++;
			for (int j = 0; j < 10; j++) {
				if (n[j] == 0) {
					cnt++;
					memo = j;
				}
			}
			if (cnt == 1) cout << memo << endl;
		} else if(r[i]=="YES"){
			y[a[i]]++; 
			y[b[i]]++;
			y[c[i]]++; 
			y[d[i]]++;
			for (int j = 0; j < 10; j++) {
				if (y[j] >= 2) {
					cout << j << endl;
				}
			}
		}
	}
	return 0;
}