sunglasses

using System;

    class Program
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());

            Console.WriteLine("{0}{1}{0}", new string ('*', n*2), new string (' ', n));


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

            }

            Console.WriteLine("*{0}*{1}*{0}*", new string('/', ((n * 2) - 2)), new string('|', n));

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

            }

            Console.WriteLine("{0}{1}{0}", new string('*', n * 2), new string(' ', n));
        }
    }