#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	string S; cin >> S;
	set<string> st;

	rep(bit, (1 << S.length())) {
		string tmp = "";
		int front = 0;
		int back = S.length() - 1;
		rep(i, S.length()) {
			if (bit & (1 << i)) {
				tmp.push_back(S[front++]);
			}
			else {
				tmp.push_back(S[back--]);
			}
		}
		// cout << tmp << " " << bitset<3>(bit) << endl;
		st.insert(tmp);
	}
	cout << st.size() << endl;

    return 0;
}