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

/***

            Bismillahir Rahmanir Rahim
            Read the name of Allah, who created you!!!
            Author : Shah Newaj Rabbi Shishir
            Department of CSE, City University, Bangladesh.

***/


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

public class Main
{
	public static void main (String[] args)
	{
		BigInteger a,ten,n,power,res;

		a = BigInteger.valueOf(1378);
		ten = BigInteger.valueOf(10);

		Scanner in = new Scanner (System.in);

		while (in.hasNext())
		{
			n = in.nextBigInteger ();

			res = a.modPow(n,ten);

			System.out.println (res);
		}
	}
}