import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] arr1 = sc.next().toCharArray();
        int mod = 0;
        for (char c : arr1) {
            mod *= 10;
            mod += c - '0';
            mod %= 6;
        }
        char[] arr2 = sc.next().toCharArray();
        boolean isEven = (arr2[arr2.length - 1] - '0') % 2 == 0;
        if (mod == 2) {
            if (isEven) {
                mod = 4;
            }
        } else if (mod == 5) {
            if (isEven) {
                mod = 1;
            }
        }
        int[] ans = new int[]{4, 2, 8, 5, 7, 1};
        System.out.println(ans[mod]);
    }
}