using System;

using System.Collections.Generic;

​

public class Program

{

    public static string c = "\"a\": \"b\",\"c\": { \"d\": \"e\" }";

    public static void Main()

    {

        Dictionary<string, dynamic> Result = new Dictionary<string, dynamic>();

        c = c.Replace("\"", "").Replace(" ","");

        foreach(var i in c.Split(',')){

            Console.WriteLine(c.Split(':')[0]);

        }

        /*

        foreach(var i in Result){

            Console.WriteLine(i);

        }

        */

    }

}