using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine ("Hello Mono World");

        int count = 23;

        var lst = new List<string>();

        for(int index = 1; index <= count; index++){

            lst.Add(index.ToString());

        }

        for(int index = 0; index < lst.Count; index++)

        {

            //incase of odd/even count verified if next index is available or not

            var codeCaseTypeIdList = new List<string>() { lst[index] };

            Console.WriteLine (index);

            Console.WriteLine (++index);

​

            //if(++index < lst.Count)

            //{

            //    codeCaseTypeIdList.Add(lst[index]);

            //}

            //Console.WriteLine (String.Join(", ", codeCaseTypeIdList.ToArray()));

        }

    }

}