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

n = int(input())
if (n > 0):
    if (n % 2 == 0):
        if (n % 4 != 0):
            print(4)
        else:
            print(6)
    else:
        if((n-1)%4==0):
            print(8)
        else:
            print(2)
else:
    print(1)
