from itertools import product

S = list(input())

ans = set()

for i in product((0, 1), repeat=len(S)):
    tmp = []
    l, r = 0, len(S) - 1
    for j in i:
        if j:
            tmp.append(S[l])
            l += 1
        else:
            tmp.append(S[r])
            r -= 1
            
    ans.add("".join(map(str, tmp)))
    
print(len(ans))