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

d="1378"
n=int(input())
if (n==0):
  print(1)
elif (n%10==0):
  print(6)
elif (n%99==0):
  print(2)
else:
 t=str(n)
 k=t.split()[0]
 h=k[-1]
 j=int(h)
 g=8**j
 od=str(g)
 kod=od[-1]
 print(kod)