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

/*
Logic is the strongest weapon.
 */
import java.io.*;
import java.util.*;

public class Coding {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        System.out.println(exp(1378, n));

    }

    public static long exp(long b, long n) { //b = 1378..., n is power. 
        long ans = 1, x = b;
        while (n > 0) {
            if (n % 2 == 1) {
                ans = (ans * x) % 10;
            }
            x = (x * x) % 10;
            n /= 2;
        }
        return ans % 10;    //returns last digit after calculation.
    }

}
