s = input()

n = len(s)
lis = []
ans = 0

for i in range(2 ** n):
	s1 = list(s)
	ns = ""
	for j in range(n):
		if ((i >> j) & 1):
			ns += s1.pop(0)
		else:
			ns += s1.pop()
	if ns not in lis:
		lis.append(ns)
		ans += 1

print(ans)