using System;

class Program
{
    static void Main()
    {
        string UserDecision = string.Empty;
        do
        {


            Console.WriteLine("Please enter your target...");
            int UserTarget = int.Parse(Console.ReadLine());

            int Start = 0;

            while (Start <= UserTarget)
            {
                Console.Write(Start + " ");
                Start = Start + 1;
            }

            do
            {
                Console.WriteLine("Do you wish to continue? Yes or No.");
                UserDecision = Console.ReadLine().ToUpper();
                if (UserDecision != "YES" && UserDecision != "NO")
                {
                    Console.WriteLine("Invalid choice");
                }
            } while (UserDecision != "YES" && UserDecision != "NO");
        } while (UserDecision == "YES");
    }
}