#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cstring>
#include <climits>
#include <cmath>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };
 
ll MOD = 1000000007;
 
int main() {
	string S; cin >> S;
	int n = S.length();
	set<string> st;
	for (int T = 0; T < (1<<n); T++) {
		string s;
		int j = 0, _j = n - 1;
		for (int i = 0; i < n; i++)
			if (T & (1<<i)) s += (S[j++]);
			else s += (S[_j--]);
		st.insert(s);
	}
	cout << st.size() << endl;
}