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

'''
1378
1 = 8
2 = 4
3 = 2
4 = 6
5 = 8
6 = 4
7 = 2
8 = 6
9 = 8
'''
n = int(raw_input())
if n == 0:
	print 1
else:
	if n%4 == 1:
		print 8
	if n%4 == 2:
		print 4
	if n%4 == 3:
		print 2
	if n%4 == 0:
		print 6