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

def q_(x):
    a = 8
    ans = 1
    while(x>0):
        if(x&1):
            ans = ans*a%10
        a = a*a%10
        x = x//2
    print(ans%10)

c =int(input())
q_(c)

	 			  	 			  	 	 	 		    			