S = list(input())
N = len(S)
ans = []
for i in range(2 ** N):
    d = list(bin(i)[2:].zfill(N))
    T = ""
    l = 0
    r = N - 1
    for j in range(N):
        if d[j] == "1":
            T += S[r]
            r -= 1
        else:
            T += S[l]
            l += 1
    ans.append(T)

ans = set(ans)
print(len(ans))