using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string ostr= "{\r\n'string1':'value',\r\n'integer2':99,\r\n'datetime3':'2000-05-23T00:00:00'\r\n}";

        Console.WriteLine(ostr);

        Console.WriteLine();

        JObject o = JObject.Parse(ostr);        

        string json = o.ToString(Newtonsoft.Json.Formatting.None);

        Console.WriteLine(json);

    }

}