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;

/**
 *
 * @author USER
 */


public class HelloWorld{

     public static void main(String []args){
         Scanner in = new Scanner(System.in);
         int r = in.nextInt();
         r= (int) Math.pow(1378, r);
         String w  = r+"";
         System.out.println(w.charAt(w.length()-1));
     }
}