using System;

using System.Linq;

​

namespace ConsoleApp1

{

    class Program

    {

        private const string characters = @"Stop and upvote my wonderful post, but dont stop forgeting to not be stupid. 

A lot of effort was placed into this lowly example!-";

        private const string numbers = "0,5,9,5,55,4,69,6,33,2,115,3,129,1,87,7,29,4,44,1,75,1";

​

        static void Main(string[] args)

        {

            int[] numArray = numbers.Split(',').Select(o => int.Parse(o)).ToArray();

​

            for (int i = 0; i < numbers.Count(o => o == ','); i++)

                Console.Write(characters.AsSpan().Slice(numArray[i], numArray[++i]).ToString());

​

        }

    }

}

​