#include <fstream>
#include <iostream>
#include <string>

/**
 * Periodic String by Steven Zeil
 */

using namespace std;


string rotate (string s)
{
  string result = s;
  unsigned n = s.size();
  for (unsigned i = 0; i < n; ++i)
    {
      result[(i+1)%n] = s[i];
    }
  return result;
}


void processDataset (istream& in, string s)
{
  for (unsigned k = 1; k <= s.size(); ++k)
    {
      if (s.size() % k == 0)
	{
	  string component = s.substr(0, k);
	  unsigned pos = k;
	  bool OK = true;
	  for (unsigned pos = k;
	       OK && (pos < s.size()); pos += k)
	    {
	      component = rotate(component);
	      OK = s.substr(pos, k) == component;
	    }
	  if (OK)
	    {
	      cout << k << endl;
	      return;
	    }
	}
    }
  cout << "Something is very, very wrong." << endl;
}


void solve (istream& in)
{
	string s;
	in >> s;
	processDataset (in, s);
}


/*
 * Run the program. Because not all IDEs support easy redirection of
 * input, if one or more command line parameters are supplied, 
 * they are treated as the name of an input file. Otherwise, read from cin.
 */
int main(int argc, char** argv)
{
	if (argc > 1)
	{
	  for (int i = 1; i < argc; ++i) 
	    {
		ifstream input (argv[i]);
		solve (input);
	    }
	}
	else
	{
		solve (cin);
	}
	return 0;
}