using System;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;               

public class Program

{

    public static void Main()

    {

    string data = "Hello****wide****world";

                string[] words = Regex.Split(data, @"(\*{4})");

                List<string> result = words.ToList();

                foreach (var item in result)

                {

                    Console.WriteLine(item);

                }

    }

}