using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Indexaccess id= new Indexaccess();

        Console.WriteLine(id[4]);

    }

}

​

​

public class Indexaccess

{

​

    List<int> mylist = new List<int>{1,2,5,434,56756,786,1232,3453,54,2,345,2,24,3434}; 

    List<string> mynamelist = new List<string>{"asdas","asdfasd","asdfas"}; 

    public int this[int i]

    {

        get{

            return mylist[i];

        }

        set{

            mylist.Add(value);

        }

    }

    public string this[ string i]

    {

        get{

            return mynamelist[0];

        }

        set{

            mynamelist.Add(value);

        }

    }

}