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.Scanner;
public class TEST {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        if (n == 0) {
            System.out.println(1);
        } else {
            int a = 0;
            while (n % 4 != 0) {
                a++;
                n++;
            }
            if (a == 0) {
                System.out.println('6');
            } else if (a == 1) {
                System.out.println('2');
            } else if (a == 2) {
                System.out.println('4');
            } else if (a == 3) {
                System.out.println('8');
            }
        }

    }
}
