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 void main(String []args)
    {
        Scanner lector = new Scanner (System.in);
        int potencia=lector.nextInt();
        int b=1;
        int aaa= (int)Math.pow(10,9);
        int ab=0;
        for(int i=1;i<=potencia;i++)
        {
            int a = 1378*b;
            b=a;
            if(b<=aaa)
            {
                ab = b%10;
                b=1378;
            }
        }
        ab= (int)Math.round(ab);
        System.out.println(ab);
        
    }
}
