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

def last (n) :
    if n == 0 :
        return 1
    else:
        ans = n%4
        if ans == 0 :
            return 6
        elif ans == 1:
            return 8
        elif ans == 2:
            return 4
        elif ans == 3:
            return 2

    
    return str(ans)[-1]

print (last(int(input())))
