import java.util.*;
import java.lang.*;
import java.io.*;
 
public class Main
{
	public static void main (String[] args) 
	{
	    Scanner in = new Scanner(System.in);
	    Vector <String> c = new Vector <String>();
	    String a = in.nextLine();
	    for(int i=0;i<a.length();i++)
	    {
	        for(int j=i+1;j<=a.length();j++)
	        {
	            c.add(a.substring(i,j));
	        }
	    }
	    HashSet<String> unique = new HashSet<String>(c);
	    Vector<String> d = new Vector<String>(unique);
	    System.out.print(d.size());
	}
}

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

QUxQSEFCRVQ=

ALPHABET