from collections import deque
from itertools import product


s=list(input())
t=s.copy()
n=len(s)
p=set()
for bits in product([0,1],repeat=n):
    d=deque(s)
    ans=""
    for x in bits:
        if x==0:
            ans+=d.pop()
        else:
            ans+=d.popleft()
    p.add(ans)


print(len(p))