# -*- coding: utf-8 -*-
"""
No.52 よくある文字列の問題
https://yukicoder.me/problems/no/52

"""
import sys
from sys import stdin
from collections import deque
input = stdin.readline


def solve(S):
    if len(S) == 1:
        return 1

    ans = set()
    que = deque()
    que.append(['', S])

    while que:
        s, rem = que.popleft()
        if len(rem) != 2:
            que.append([s+rem[0], rem[1:]])
            que.append([s+rem[-1], rem[:-1]])
        else:
            ans.add(s + rem)
            ans.add(s + rem[::-1])
    return len(ans)


def main(args):
    s = input().strip()
    ans = solve(s)
    print(ans)


if __name__ == '__main__':
    main(sys.argv[1:])