using System;

public class Program

{

    public static void Main()

    {

        string str;

        Console.WriteLine("Write a coded sentence");

        str=Console.ReadLine();

        Console.WriteLine(DeleteDouble(str));

    }

    public static string DeleteDouble(string str)

    {

        string str_new;

        str_new=str;

        while(str.IndexOf("**")!=-1)

        {

        str_new=str.Substring(0,str.IndexOf("**"));

        }

        return str;

    }

}