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

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<endl
#define p2(s, t) cout << (s) << " " << (t) << endl
#define br() p("")
#define pn(s) cout << (#s) << " " << (s) << endl

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    string s; cin >> s;
    ll L = s.size();

    set<string> se;

    FOR(mask, 0, 1<<L){
        stringstream ss;
        ll left = 0;
        ll right = L-1;
            FOR(i, 0, L){
            if(mask>>i&1){
                ss << s[left];
                left++;
            }
            else{
                ss << s[right];
                right--;
            }
        }
        se.insert(ss.str());
    }

    p(se.size());
    
    return 0;
}