#include <iostream>
#include <string>
#include <algorithm>
#include <set>
using namespace std;
int main(){
  set<string> se;
  string s;
  cin >> s;
  for(int i=0;i< (1<<s.size())-1;i++){
    int x=i;
    string t=s,work="";
    for(int j=0;j<s.size();j++){
      if(x%2==0){work+=t[0];t.erase(t.begin());}
      else{work+=t[t.size()-1];t.erase(t.end()-1);}
      x/=2;
    }
    se.insert(work);
  }
  cout << se.size() << endl;
  return 0;
}