#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <cstring>
using namespace std;

int main(void){
    string s; cin >> s;
    set<string> ans;
    int size = s.size();
    for (int i = 0; i < (1 << size); ++i){
        string ss = s;
        string tmp;
        int a = 0;int b = size-1;
        for (int pos = 0; pos < size; ++pos){
            if(i & (1 << pos)){
                tmp += ss[a++];
            }else{
                tmp += ss[b--];
            }
        }
        ans.insert(tmp);
    }
    cout << ans.size();
}