import java.util.Arrays;
import java.util.Scanner;
public class No24 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		final int n = sc.nextInt();
		int a, b, c, d;
		boolean r[] = new boolean[10];
		Arrays.fill(r, true);
		for (int i = 0; i < n; i++) {
			a = sc.nextInt();
			b = sc.nextInt();
			c = sc.nextInt();
			d = sc.nextInt();
			if (args[(i + 1) * 5].length() == 3) {
				for (int j = 0; j < 10; j++)
					if (j != a && j != b && j != c && j != d)
						r[j] = false;
			} else {
				r[a] = r[b] = r[c] = r[d] = false;
			}
		}
		for(int i=0;i<10;i++)if(r[i])System.out.println(i);
	}
}