import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

public class Main {
	
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		String N = sc.next();
		String M = sc.next();
		
		int[][] answers = {
				{0},
				{1},
				{2, 4, 8, 6},
				{3, 9, 7, 1},
				{4, 6},
				{5},
				{6},
				{7, 9, 3, 1},
				{8, 4, 2, 1},
				{9, 1},
		};
		
		final int N_mod_10 = Integer.parseInt(N.substring(N.length() - 1));
		final int M_mod_100 = Integer.parseInt(M.substring(Math.max(0, M.length() - 2)));
		
		//System.out.println(N_mod_10 + ":" + M_mod_100);
		System.out.println(answers[N_mod_10]["0".equals(M) ? 0 : (100 + M_mod_100 - 1) % answers[N_mod_10].length]);
		
	}
	
}