#include <bits/stdc++.h>
using namespace std;
int main() {
    #ifdef DEBUG
    std::ifstream in("/home/share/inputf.in");
    std::cin.rdbuf(in.rdbuf());
    #endif
    string S;
    cin >> S;
    set<string> s;
    int N = S.length();
    for(int i = 0; i < (1 << N); i++) {
        string x = "";
        int l = 0, r = N - 1;
        for(int j = 0; j < N; j++) {
            if(i & (1 << j)) {
                x.push_back(S[l]);
                l++;
            } else {
                x.push_back(S[r]);
                r--;
            }
        }
        s.insert(x);
    }
    cout << s.size() << endl;
    return 0;
}