using System;

using System.Collections.Generic;

using System.Net;

using System.IO;

using System.Text;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    } // end main

}// end prog

​

namespace models {

    public class waste {

        public string uname {get;set;}

        public string code {get;set;}

        public string descr {get;set;}

        public string mass {get;set;}

    }

   public class waste_list{

        public  List<waste> list1 {get;set;}    

    }

​

}

​

​