//No.24 数当てゲーム

import java.util.*;
import java.io.*;
import static java.util.Arrays.*;
import static java.lang.Math.*;

public class No24 {
    
    static final Scanner sc = new Scanner(System.in);
    static final PrintWriter out = new PrintWriter(System.out,false);

    static void solve() {
        int n = sc.nextInt();
        int f = 0;
        for (int i=0; i<n; i++) {
            int a = 0;
            for (int j=0; j<4; j++) {
                a |= 1<<sc.nextInt();
            }
            if (sc.next().equals("YES")) f |= ~a;
            else f |= a;
        }

        for (int i=0; i<10; i++) {
            if ((f>>i&1) == 0) {
                out.println(i);
            }
        }
    }

    public static void main(String[] args) {
        long start = System.currentTimeMillis();

        solve();
        out.flush();

        long end = System.currentTimeMillis();
        //trace(end-start + "ms");
        sc.close();
    }

    static void trace(Object... o) { System.out.println(deepToString(o));}
}