Sunglasses

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)
        {
            int 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 ((n % 2 == 1) && (row == (n - 1) / 2))
                    {
                        Console.Write(new string('|', n));
                    }
                    else if ((n % 2 == 0) && (row == n / 2 - 1))
                    {
                        Console.Write(new string('|', n));
                    }
                    else
                    {
                        Console.Write(new string(' ', n));
                    }

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