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.*;
import java.awt.List;
import java.io.*;

public class Ques2 
{
	static class FastReader {
		BufferedReader br;
		StringTokenizer st;

		public FastReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
		}

		String next() {
			while (st == null || !st.hasMoreElements()) {
				try {
					st = new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			return st.nextToken();
		}

		int nextInt() {
			return Integer.parseInt(next());
		}

		long nextLong() {
			return Long.parseLong(next());
		}

		double nextDouble() {
			return Double.parseDouble(next());
		}

		String nextLine() {
			String str = "";
			try {
				str = br.readLine();
			} catch (IOException e) {
				e.printStackTrace();
			}
			return str;
		}
	}

	public static void main(String[] args)
	{
		FastReader s = new FastReader();
		String num = s.next();

		int len = num.length();
		long number = Long.parseLong(num);
		long a = Long.parseLong(num.charAt(len-1)+"");
		long b = a%4;
//		System.out.println(a);
		if(a == 0)
		{
			System.out.println(1);
		}
		else if(b==1)
		{
			System.out.println(8);
		}
		else if(b==3)
		{
			System.out.println(2);
		}
		else if(b==2)
		{
			System.out.println(4);
		}
		else if(b== 0)
		{
			System.out.println(6);
		}
	}
}
