using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var urls = "http://localhost:3000,https://renewal-web-ayvens.dev.crg.leaseplan.systems,https://renewal-web-ayvens.test.crg.leaseplan.systems";

        var urlArray = urls.Split(',').OrderBy(str => str);

​

        Console.WriteLine("Original Redirect Urls");

        foreach(var url in urlArray)

        {

            Console.WriteLine(url);

        }       

        Console.WriteLine();

        Console.WriteLine();

        Console.WriteLine("Unique Redirect Urls");

        var uniqueUrlArray = urlArray.Distinct();

        foreach(var url in uniqueUrlArray)

        {

            Console.WriteLine(url);

        }

        Console.WriteLine();

        Console.WriteLine();

        var finalUrls = string.Join(',', uniqueUrlArray);

        Console.WriteLine(finalUrls);

    }

}