using System;

​

​

public class Program

{

    public static void Main()

    {

        string text = "holidays/*/2024/*/foobar";

        char delimiter = '*';

        string[] splitted = text.Split(delimiter);

        for (var i = 0; i < splitted.Length; i++) {

            var fragment = splitted[i];

            if (i > 0) {

                fragment = delimiter + fragment;

            }

​

            if (i < splitted.Length - 1) {

                fragment += delimiter;

            }

​

            Console.WriteLine(fragment);

        }

    }

}