import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class No00000632_Main {
	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	public static void main(String[] args) throws IOException {
		String[] a = br.readLine().split(" ");
		String r = "14";
		if("2".equals(a[1])) {
			r = "4";
		} else if("3".equals(a[1])) {
			r = "1";
		}
		System.out.println(r);
	}
}