Sunglasses

using System;
namespace Sunglases
{
    class Sunglases
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            for (int i = 0; i < n; i++)
            {
                if ( i == 0 || i == n - 1)
                {
                    PrintTopBottomPar(n);
                }
                else
                {
                    PrintMiddlePart(n , i);
                }
            }
        }

        private static void PrintMiddlePart(int n , int i)
        {
            string lens = new string('/', n * 2 - 2);
            string middleframe = string.Format("{0}{1}{0}", '*', lens);
            string connection = new string(' ', n);
            if ( i == n / 2)
            {
                connection = new string('|', n);
            }
            Console.WriteLine("{0}{1}{0}", middleframe, connection);
        }

        private static void PrintTopBottomPar(int n)
        {
            string frame = new string('*', 2 * n);
            string emptyspace = new string(' ', n);
            Console.WriteLine("{0}{1}{0}" , frame , emptyspace , frame);
        }
    }
}