12
 1378
 51202278
 989898989
 4
 7
 9
 6
 8
 12193721
 999999995
 999999999
 11
 999999996
 999999998
 3
 14
 15
 10
 999999994
 1000
 13781378
 5
 999999997
 1000000000
 13
 16
 0

6
 4
 4
 8
 6
 2
 8
 4
 6
 8
 2
 2
 2
 6
 4
 2
 4
 2
 4
 4
 6
 4
 8
 8
 6
 8
 6
 1

import java.util.*;

public class Main {
    
    public static int pow(int n, int e){
        if(e == 0) return 1;
        if(e == 1) return n % 10;
        int res = pow(n, e / 2);
        res = res * res;
        if(e % 2 != 0)
            res *= n;
        return res % 10;
    }
    
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        System.out.println(pow(1378, n));
    }
}