from collections import deque
s = input()
l = len(s)
sset = set()
for b in range(1 << l):
    d = deque(s)
    t = []
    for i in range(l):
        if b >> i & 1:
            c = d.popleft()
        else:
            c = d.pop()
        t.append(c)
    sset.add(''.join(t))
print(len(sset))