using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace Sunglasses

{

    class Program

    {

        static void Main(string[] args)

        {

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

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

            {

                if (row == 0 || row == n - 1)

                {

​

                    Console.Write(new string('*', 2 * n));

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

                    Console.Write(new string('*', 2 * n));

                }

                else

                {

                    Console.Write("*");

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

                    Console.Write("*");

                    if(row==(n-1)/2)

                    Console.Write(new string('|', n));

                    else

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

                    Console.Write("*");

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

                    Console.Write("*");

                }

                Console.WriteLine();

            }

        }

    }

}

​