#include <bits/stdc++.h>

#define ll long long
#define ld long double
#define rep(i,a,b) for (int i = a; i < b; i++)
#define irep(i,a,b) for (int i = a; i > b; i--)
#define print(n) cout << n << endl
#define rup(a,b) (a+b-1)/b

using namespace std;

int main(){
    cout << fixed << setprecision(15);
    
    string s;
    cin>>s;
    set<string> d;
    string now = "";
    int right,left;
    int k = s.length();

    rep(i,0,(int)pow(2,k)){
        now = "";
        left = 0;
        right = k - 1;
        rep(j,0,k){
            if (i>>j & 1){
                now += s[left];
                left ++;
            }else{
                now += s[right];
                right --;
            }
        }
        d.insert(now);
       // print(now);
    }

    //print(*d.begin());
    print(d.size());
    
    //system("pause");
    return 0;
}