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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main{

	public static void main(String[] args) throws IOException {
		SC cin = new SC(System.in);
		long n=cin.nextLong();
		int ans=(int) (n%4);
		
		if(n==0){
			System.out.println("1");
			return;
		}
		if(ans==1)
			System.out.println("8");
		else if(ans==2)
			System.out.println("4");
		else if(ans==3)
			System.out.println("2");
		else 
			System.out.println("6");
	}
	
	
	static class SC
	{
		BufferedReader br;
		StringTokenizer st;

		SC(InputStream s)
		{
			br = new BufferedReader(new InputStreamReader(s));
		}

		String next() throws IOException
		{
			while(st == null || !st.hasMoreTokens())
				st = new StringTokenizer(br.readLine());
			return st.nextToken();
		}

		int nextInt() throws NumberFormatException, IOException
		{
			return Integer.parseInt(next());
		}

		long nextLong() throws NumberFormatException, IOException
		{
			return Long.parseLong(next());
		}
	}
}