using System;

public class Program

{

    public static void Main()

    {

        int n = int.Parse(Console.ReadLine());

        int leftElement = n / 2 - 1;

        int rightElement = n / 2;

        // top

        for (int i = 0; i < n / 2; i++)

        {

            for (int j = 0; j < n; j++)

            {

                if (j == leftElement)

                {

                    Console.Write("#");

                }

​

                else if (j == rightElement)

                {

                    Console.Write("#");

                }

​

                else

                {

                    Console.Write(".");

                }

            }

​

            leftElement--;

            rightElement++;

            Console.WriteLine();

        }

​

        leftElement++;

        rightElement--;

​

        for (int i = 0; i < n / 4; i++)

        {

            for (int j = 0; j < n; j++)

            {

                if (j == leftElement)

                {

                    Console.Write("#");

                }

​

                else if (j == rightElement)

                {

                    Console.Write("#");

                }

​

                else

                {

                    Console.Write(".");

                }

            }

​

            leftElement++;

            rightElement--;

            Console.WriteLine();

        }

​

        for (int i = 0; i < n; i++)

        {

            Console.Write("-");

        }

        Console.WriteLine();

​

        // bottom

        for (int i = 0; i < n / 2; i++)

        {

            Console.Write(new string ('.', (i) ));

            Console.Write(new string('\\', (n / 2 - i)));

            Console.Write(new string('/', (n / 2 - i)));

            Console.Write(new string ('.', (i) ));

​

            Console.WriteLine();

        }

    }

}