Headphones

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+2));

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

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

            }

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

            int firstLines = n - n;
            int middle = 1;
            int stars = n;

            for (int i = 1; i < n/2+1; i++)

            {
                firstLines += 1;
                stars -= 2;
                middle += 2;
                Console.WriteLine("{0}{1}{2}{1}{0}", new string ('-', firstLines), new string('*', stars), new string('-', middle));
            }
        }
    }