fire

using System;

class Fire
{
    static void Main()
    {
        int n = int.Parse(Console.ReadLine());


        //fire
        Console.Write(new string('.', n / 2 - 1));
        Console.Write("##");
        Console.WriteLine(new string('.', n / 2 - 1));

        int outerDots = n / 2 - 2;
        int innerDots = 2;
        for (int i = 0; i < n / 2 - 2; i++)
        {
            Console.Write(new string('.', outerDots));
            Console.Write('#');
            Console.Write(new string('.', innerDots));
            Console.Write('#');
            Console.WriteLine(new string('.', outerDots));

            innerDots += 2;
            outerDots--;
        }

        Console.Write('#');
        Console.Write(new string('.', n - 2));
        Console.WriteLine('#');


        innerDots = n - 2;
        for (int i = 0; i < (n - 2) / 3; i++)
        {
            Console.Write(new string('.', i));
            Console.Write('#');
            Console.Write(new string('.', innerDots));
            Console.Write('#');
            Console.WriteLine(new string('.', i));

            innerDots -= 2;
        }

        Console.WriteLine(new string('-', n));

        //torch
        int leftSLash = n / 2;
        int rightSlash = n / 2;
        for (int i = 0; i < n / 2; i++)
        {
            Console.Write(new string('.', i));
            Console.Write(new string('\\', leftSLash));
            Console.Write(new string('/', rightSlash));
            Console.WriteLine(new string('.', i));

            leftSLash--;
            rightSlash--;
        }
    }
}