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 mehrdad
{
    public static void main(String args[])
    {
        Scanner s= new Scanner(System.in);
        int n= s.nextInt();
        int i, r=0, c=8; 
        r=n%4;
        if(n==0)
        System.out.println("1");
        else if(r==0)
        System.out.println("6");
        else
        {
           for(i=0; i<r-1; i++)
           {
                c=c*8;
           }
           System.out.println(c%10);
        }
        }
}

