#include <iostream>
#include <string>
using namespace std;

#define MOD (int)(1e9 + 7)

int solve(string s)
{
  int ret = 1, n = s.length();
  for(int i = 1; i <= n / 2; i++){
    if(s.substr(0, i) == s.substr(n - i, i)){
      ret += solve(s.substr(i, n - 2 * i));
    }
  }
  return ret;
}

int main()
{
  string s;
  cin >> s;

  cout << solve(s) << endl;

  return 0;
}