using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        Dictionary<string,string> dctUrl = new Dictionary<string,string>();

        dctUrl.Add("Google", "http://www.google.com");

        dctUrl.Add("Yahoo", "http://www.yahoo.com");

        dctUrl.Add("Excite", "http://www.excite.com");

        string result = JsonConvert.SerializeObject(dctUrl);

        Console.Out.WriteLine(result);

    }

}