package main

import "fmt"

func main() {
	var n int64
	fmt.Scan(&n)
	if n == 0 {
		fmt.Print(1)
		return
	}
	switch n % 4 {
	case 1:
		fmt.Print(8)
	case 2:
		fmt.Print(4)
	case 3:
		fmt.Print(2)
	default:
		fmt.Print(6)
	}
}