#include <iostream>
#include <iomanip>
#include <unordered_map>

int main(void)
{
  std::cin.tie(0);
  std::ios::sync_with_stdio(false);
  std::cout << std::fixed << std::setprecision(8);
  std::string s;
  std::cin >> s;
  std::unordered_map< std::string, bool > m;
  for (int i = (1<<s.size())-1; i >= 0; --i) {
    std::string n_s;
    int piv = 1, piv_b = 0, piv_t = s.size()-1;
    for (int j = 0; j < s.size(); ++j) {
      if ((i & piv) == piv) {
        n_s+=s[piv_b]; piv_b++;
      }
      else {
        n_s+=s[piv_t]; piv_t--;
      }
      piv = piv << 1;
    }
    m[n_s] = true;
  }
  std::cout << m.size() << std::endl;
  return 0;
}