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());
            if (3 <= n & n <= 100)
            {
                Console.WriteLine(new string('*', 2 * n) + new string(' ', n) + new string('*', 2 * n));

                for (int i = 0; i < n - 2; i++)
                {
                    Console.Write("*" + new string('/', 2 * n - 2) + "*");
                    if (i == (n - 1) / 2 - 1)
                    {
                        Console.Write(new string('|', n));
                    }
                    else
                    {
                        Console.Write(new string(' ', n));
                    }
                    Console.Write("*" + new string('/', 2 * n - 2) + "*");
                    Console.WriteLine();
                }

                Console.WriteLine(new string('*', 2 * n) + new string(' ', n) + new string('*', 2 * n));
            }
            else
            {
                Console.WriteLine("Invalid");
            }
        }

     }
}