amogus

#include <fstream>
using namespace std;
ifstream cin("scode.in");
ofstream cout("scode.out");
int combos(string s)
{
    int a = 1, n = s.size();
    if((n & 1) == 0 || n == 1) // A -> A
        return 1;
    if(s.substr(0, n/2) == s.substr(n/2, n/2))      // ABC -> AB + ABC
        a += combos(s.substr(n/2, n/2+1));
    if(s.substr(0, n/2) == s.substr(n/2+1, n/2))    // ABC -> ABC + AB
        a += combos(s.substr(0, n/2+1));
    if(s.substr(0, n/2) == s.substr(n/2+1, n/2))    // ABC -> BC + ABC
        a += combos(s.substr(n/2, n/2+1));
    if(s.substr(1, n/2) == s.substr(n/2+1, n/2))    // ABC -> ABC + BC
        a += combos(s.substr(0, n/2+1));
    return a;
}
int main()
{
    string s;
    cin >> s;
    cout << combos(s) - 1;
}