using System;

using System.Linq;      

using System.Collections.Generic;

//using System.Threading;

public class Program

{

    //using System.Collections.Generic;

    public static  Dictionary<string, string> dic = new Dictionary<string, string>();

    public static string Code1{

        get

        {

        while(true)

        {

        string L_code= Guid.NewGuid().ToString().Substring(0,6);

            if(!dic.Keys.Contains(L_code))

            {

            return L_code;

            }

        }

            //return "";

        }

    } 

    public static string GetCode( )  {

        while(true)

        {

        string L_code= Guid.NewGuid().ToString().Substring(0,6);

            if(!dic.Keys.Contains(L_code))

            {

            return L_code;

            }

        }

    }

    static void  load()

     {

        try{

            for(int i =0; i < 1000; i ++)

                {

                    var code=GetCode();

​

                    dic.Add(code, code + " URL VAlue");

                    Console.WriteLine(code.ToUpper());

                }

        }

        catch(Exception ex)

        {

        //  Console.WriteLine(ex.ToUpper());

        }

        finally

        {

        }

     }

    public static void Main()

    {

    if (dic.Keys.Contains("umad"))

    {

        var val= dic["umad"];

    }

        foreach(var val in dic)

        {

            if(val.Value=="newUrl")

            {

            }

        }

         for(int i =0; i < 1000; i ++)

            {

              Console.WriteLine(Code1.ToUpper());

            }

        Console.WriteLine("Hello World  " );

    }

}

​

public class myClass : IMyURL

    {

    public string MyName(string code)

    {

    return "";

    }

​

    public string AddNew(string URL)

    {

    return "";

    }

​

}

class Employee

{

​

string Name{get; set;}

int age{get; set;}

​

}

​

interface IMyURL

{

string MyName(string code);

string AddNew(string URL);

}

​

​