#include <bits/stdc++.h>
using namespace std;
string gen(string a,int m)
{
	if(!a.size()) return "";
	string answer;
	if(m&1)
		answer = a[a.size()-1] + gen(string(a.begin(),a.end()-1),m>>1);
	else
		answer = a[0] + gen(string(a.begin()+1,a.end()),m>>1);
	return answer;
}
int main() {
	string s;
	set<string> alls;
	int answer = 0;
	cin >> s;
	for(int i=0;i<(1<<s.size());i++)
		if(alls.insert(gen(s,i)).second) answer++;
	cout << answer << endl;
	return 0;
}