#include <bits/stdc++.h>
using namespace std;

int main() {
  string S;
  cin >> S;
  int N = S.size();
  set<string> SE;
  for (int bit = 0; bit < 1 << N; bit++) {
    auto copy = S;
    string tmp;
    for (int i = 0; i < N; i++) {
      if (bit >> i & 1) {
        tmp += copy.front();
        copy.erase(0, 1);
      } else {
        tmp += copy.back();
        copy.pop_back();
      }
    }
    SE.insert(tmp);
  }
  cout << SE.size() << "\n";
}