using System;
using System.Collections.Generic;
using System.Text;

public class Program
{
    public void Proc(){
        
        Reader.IsDebug = false;
        string inpt = Reader.ReadLine();
        List<string> ans = this.GetAns(inpt);
        Console.WriteLine(ans.Count);
    }
    
    Dictionary<string, List<String>> dic = new Dictionary<string, List<string>>();
    private List<string> GetAns(string inpt) {

        if(dic.ContainsKey(inpt)) {
            return dic[inpt];
        }
        
        if(inpt.Length == 1) {
            List<string> tmp = new List<string>();
            tmp.Add(inpt);
            return tmp;
        }
        
        List<string> ans = new List<string>();
        
        
        List<string> ret = this.GetAns(inpt.Substring(1));
        foreach (string item in ret)
        {
            string newItem = inpt.Substring(0, 1) + item;
            ans.Add(newItem);
        }
        ret = this.GetAns(inpt.Substring(0, inpt.Length - 1));
        foreach (string item in ret)
        {
            string newItem = inpt.Substring(inpt.Length - 1) + item;
            if(!ans.Contains(newItem)) {
                ans.Add(newItem);
            }
        }
        dic.Add(inpt, ans);
        return ans;
    }

    
    public static void Main(string[] args)
    {
        Program prg = new Program();
        prg.Proc();
    }
}

class Reader
{
    public static bool IsDebug = true;
    
    private static System.IO.StringReader sr;
    
    public static string ReadLine() {
        if(IsDebug) {
            if(sr == null) {
                sr = new System.IO.StringReader(initStr.Trim());
            }
            return sr.ReadLine();
        } else {
            return Console.ReadLine();
        }
    }
    
    public static int[] GetInt(char delimiter = ' ') {
        string[] inpt = ReadLine().Split(delimiter);
        int[] ret = new int[inpt.Length];
        for(int i=0; i<inpt.Length; i++) {
            ret[i] = int.Parse(inpt[i]);
        }
        return ret;
    }
    
    private static string initStr = @"



aaaaaaaaaa



";
}