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.math.BigInteger;
import java.util.Scanner;
//import java.util.Arrays;

public class Code {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);
        BigInteger n = in.nextBigInteger();
        if (n.intValue() == 0){
            System.out.println("1");
            System.exit(0);
        }
        BigInteger c = BigInteger.valueOf(8);
        
        BigInteger num = n.mod(BigInteger.valueOf(4));
        
        if (num.intValue() == 0){
            System.out.println("6");
            System.exit(0);
        }

        System.out.println((int)(Math.pow(8, num.intValue()) % 10));

    }
}
