#include "bits/stdc++.h"
using namespace std;

int main() {
	string S;
	cin >> S;
	set<string> SET;
	for (int i = 0; i < 1 << S.size(); i++) {
		int X = i, Y[10];
		for (int j = 0; j < S.size(); j++) {
			Y[j] = X % 2;
			X /= 2;
		}
		int L = 0, R = S.size() - 1;
		string T = "";
		for (int j = 0; j < S.size(); j++) {
			if (Y[j] == 0) {
				T = T + S[L];
				L++;
			}
			else {
				T = T + S[R];
				R--;
			}
		}
		SET.insert(T);
	}
	cout << SET.size() << endl;
}