#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
using namespace std;
#define len(n) (int)n.length()
#define pb push_back
#define ll long long
#define make_pair mkp
#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define ALL(v) (v).begin(), (v).end()
#ifdef DBGPRT
#define dbg(n) cerr << "//" << #n << ":" << n <<endl
#else
#define dbg(n) ;
#endif
typedef pair<ll, ll> LLARR;
#define INF 999999999
const double PI = 3.1415926535897932384626433832795;

set<string> ans;
void frac(string s, string a, bool isFront, int n)
{
	if (len(a) == n)
	{
		ans.insert(a);
		return;
	}
	if (isFront)
	{
		a += s[0];
		s.erase(s.begin());
	}
	else
	{
		a += s[len(s)-1];
		s.pop_back();
	}
	
	frac(s,a,true, n);
	frac(s,a,false, n);
}

int main()
{
	ios::sync_with_stdio(false);

	string s;
	cin >> s;
	
	string a;
	frac(s,a,true, len(s));
	frac(s,a,false, len(s));
	cout << ans.size() << endl;
	return 0;
}