using System;
using System.Collections.Generic;

class SwapString
{
	static void Main(String[] args)
	{
		String S = Console.ReadLine();
		Queue<String> countQueue = new Queue<String>();
		Queue<String> uniqueQueue = new Queue<String>();

		countQueue.Enqueue(S);
		while(countQueue.Count > 0)
		{
			String s = countQueue.Dequeue();
			if(!uniqueQueue.Contains(s))
			{
				uniqueQueue.Enqueue(s);
				for(int i=0; i < s.Length-1; i++)
				{
					char[] arr = s.ToCharArray();
					char temp = arr[i+1];
					arr[i+1] = arr[i];
					arr[i] = temp;
					String t = new String(arr);
					countQueue.Enqueue(t);
				}
			}
		}
		Console.WriteLine(uniqueQueue.Count-1);
	}
}