modlist = [[], [1], [2, 4, 8, 6], [3, 9, 7, 1], [4, 6], [5], [6], [7, 9, 3, 1], [8, 4, 2, 6], [9, 1]]

N = raw_input()
M = raw_input()

ans = 1
if M != '0':
	n = int(N[-1])
	m = 0
	if len(M) > 2: m = int(M[-3]+M[-2]+M[-1])-1
	else: m = int(M)-1
	ans = modlist[n][m%len(modlist[n])]
print ans