S = input()
L = len(S)

ss = set()
for i in range(2**L):
    v = ''
    head = 0
    tail = L-1
    for j in range(L):
        if i & 1<<j == 0:
            v += S[head]
            head += 1
        else:
            v += S[tail]
            tail -= 1
    ss.add(v)

ans = len(ss)
print(ans)