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

n1=input()
n=n1%10
if n==1:
    print 8
elif n==2:
    print 4
elif n==3:
    print 2
elif n==4:
    print 6
elif n==5:
    print 8
elif n==6:
    print 4
elif n==7:
    print 2
elif n==8:
    print 6
elif n==9:
    print 8
elif n==0:
    print 1
    
