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

int main(){
   set<string> s;
   string str;
   cin >> str;
   const int STRSIZE = str.size();
   for(int i = 0;i < (1 << (STRSIZE - 1));i++){
      string tmp = "";
      int f = 0,e = STRSIZE - 1;
      for(int j = 0;j < STRSIZE - 1;j++) (i >> j) & 1 ? tmp += str[f++] : tmp += str[e--];
      tmp += str[f];
      s.insert(tmp);
   }
   cout << s.size() << endl;
}