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

#define int long long

signed main(){
  string s;cin>>s;
  set<string> se;
  int n=s.size();
  for(int i=0;i<(1<<n);i++){
    string res;int pre=0,ba=n-1;
    for(int j=0;j<n;j++){
      if((i>>j)&1)res+=s[pre++];
      else res+=s[ba--];
    }
    se.insert(res);
  }
  cout<<se.size()<<endl;
}