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

inp = int(raw_input());

powers = [0]*32
p = 1378
res = 1

for x in range(0, 32):
    powers[x] = p
    p *= p
    p %= 10

for y in range(0, 32):
    if inp & (1<<y):
        res *= powers[y]

    res %= 10

print str(res)[-1]
			    		    	 	  	    	 	 		 	