using System;
using System.Diagnostics;

namespace NoNamespace.Task022
{
    internal static class Program
    {
        private static void Main()
        {
            try
            {
                //while (true)
                {
                    PrintSomeNumbers(1, 4, 5);
                }
            }
            catch(Exception e)
            {
                Console.WriteLine(e);
            }
            finally
            {
                Console.ReadLine();
            }
        }


        private static void PrintSomeNumbers(int start_number, int count, int step)
        {
            Debug.Assert(count > 0);

            for (var i = 0; i < count; i++)
            {
                for (var j = 0; j <= i; j++)
                    Console.Write(start_number + i + " ");

                Console.WriteLine();
                for (var j = 0; j <= i; j++)
                    Console.Write(start_number + i + step + " ");

                Console.WriteLine();
            }
        }
    }
}