S = input()
N = len(S)

s = set()
for bit in range(1 << N):
    left = 0
    right = N-1
    l = []
    for j in range(N):
        mask = 1 << j
        if mask & bit:
            l.append(S[left])
            left += 1
        else:
            l.append(S[right])
            right -= 1
    s.add("".join(l))
print(len(s))