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

//package session1;

import java.util.Scanner;

public class ArpaLand {
	
	public static void arpa(int n){
		
		int digit = 8;
		
		for(int i=0; i< n-1; i++){
			digit = (digit*digit) % 10;
		}
		
		System.out.println(digit);
		
	}
	
	public static void main(String[] args){
		Scanner input = new Scanner(System.in);
		
		int n = input.nextInt();
		
		arpa(n);
		
		input.close();
		
	}
}
