kolona

using System;

namespace _02Solution
{
    class Program
    {
        static void Main(string[] args)
        {
            int number = 7;//int.Parse(Console.ReadLine());

            int count1 = 0;

            for (int row = 0; row < number + number / 2; row++)
            {
                for (int col = 0; col < number; col++)
                {
                    if (count1 >= 2 && count1 <= 4)
                    {
                        Console.Write('.');
                        count1++;
                    }
                    else
                    {
                        Console.Write('#');
                        count1 = 2;
                    }
                }
                Console.WriteLine();
            }
        }
    }
}