Carpets

using System;

class Program
{
    static void Main()
    {
        int N = int.Parse(Console.ReadLine());
        int dots = N / 2 - 1;
        int j = 0;
        if (N / 2 % 2 != 0)
        {
            for (int i = 1; i <= N / 2; i++)
            {
                Console.Write(new string('.', dots));
                dots--;
                for (j = 1; j < N / 2 - dots; j++)
                {
                    if (j % 2 != 0)
                    {
                        Console.Write("/");
                    }
                    else
                    {
                        Console.Write(" ");
                    }
                }
                for (int k = N / 2 + 1; k < N - dots; k++)
                {
                    if (i % 2 == 0)
                    {
                        if (k % 2 != 0)
                        {
                            Console.Write("\\");
                        }
                        else
                        {
                            Console.Write(" ");
                        }
                    }
                    else if (i % 2 != 0)
                    {
                        if (k % 2 != 0)
                        {
                            Console.Write(" ");
                        }
                        else
                        {
                            Console.Write("\\");
                        }
                    }
                }
                Console.Write(new string('.', dots + 1));
                Console.WriteLine();
            }
            dots = 0;
            j = 0;

            for (int i = 1; i <= N / 2; i++)
            {
                Console.Write(new string('.', dots));
                dots++;

                for (int k = N / 2; k <= N - dots; k++)
                {
                    if (i % 2 != 0)
                    {
                        if (k % 2 == 0)
                        {
                            Console.Write(" ");
                        }
                        else
                        {
                            Console.Write("\\");
                        }
                    }
                    else if (i % 2 == 0)
                    {
                        if (k % 2 != 0)
                        {
                            Console.Write("\\");
                        }
                        else
                        {
                            Console.Write(" ");
                        }
                    }
                }
                for (j = N / 2; j <= N - dots; j++)
                {
                    if (i % 2 != 0)
                    {
                        if (j % 2 != 0)
                        {
                            Console.Write("/");
                        }
                        else
                        {
                            Console.Write(" ");
                        }
                    }
                    else if (i % 2 == 0)
                    {
                        if (j % 2 != 0)
                        {
                            Console.Write(" ");
                        }
                        else
                        {
                            Console.Write("/");
                        }
                    }
                }
                Console.Write(new string('.', dots - 1));
                Console.WriteLine();
            }
        }
        if (N / 2 % 2 == 0)
        {
            for (int i = 1; i <= N / 2; i++)
            {
                Console.Write(new string('.', dots));
                dots--;
                for (j = 1; j < N / 2 - dots; j++)
                {
                    if (j % 2 != 0)
                    {
                        Console.Write("/");
                    }
                    else
                    {
                        Console.Write(" ");
                    }
                }
                for (int k = N / 2 + 1; k < N - dots; k++)
                {
                    if (i % 2 != 0)
                    {
                        if (k % 2 != 0)
                        {
                            Console.Write("\\");
                        }
                        else
                        {
                            Console.Write(" ");
                        }
                    }
                    else if (i % 2 == 0)
                    {
                        if (k % 2 != 0)
                        {
                            Console.Write(" ");
                        }
                        else
                        {
                            Console.Write("\\");
                        }
                    }
                }
                Console.Write(new string('.', dots + 1));
                Console.WriteLine();
            }
            dots = 0;
            j = 0;

            for (int i = 1; i <= N / 2; i++)
            {
                Console.Write(new string('.', dots));
                dots++;

                for (int k = N / 2; k <= N - dots; k++)
                {
                    if (i % 2 != 0)
                    {
                        if (k % 2 != 0)
                        {
                            Console.Write(" ");
                        }
                        else
                        {
                            Console.Write("\\");
                        }
                    }
                    else if (i % 2 == 0)
                    {
                        if (k % 2 == 0)
                        {
                            Console.Write("\\");
                        }
                        else
                        {
                            Console.Write(" ");
                        }
                    }
                }
                for (j = N / 2; j <= N - dots; j++)
                {
                    if (i % 2 != 0)
                    {
                        if (j % 2 != 0)
                        {
                            Console.Write("/");
                        }
                        else
                        {
                            Console.Write(" ");
                        }
                    }
                    else if (i % 2 == 0)
                    {
                        if (j % 2 != 0)
                        {
                            Console.Write(" ");
                        }
                        else
                        {
                            Console.Write("/");
                        }
                    }
                }
                Console.Write(new string('.', dots - 1));
                Console.WriteLine();
            }
        }
    }
}