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

a=1378
b=input()

while b > 1:    
     if (b%4)==1:
         print("8")
         break
     elif (b%4)==2:
         print("4")
         break
     elif (b%4)==3:
         print ("2")
         break
     elif (b%4)==0:
         print("6")
         break

else :
    print ("1")
    
    
