Headphones

using System;

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

        int outerDash = n / 2;
        int star = 1;
        int innerDash = n;

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

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

        int outerDash2 = 1;
        int star2 = n - 2;
        int innerDash2 = 3;

        for (int i = 0; i < n / 2; i++)
        {
            Console.WriteLine("{0}{1}{2}{1}{0}", new string('-', outerDash2), new string('*', star2), new string('-', innerDash2));
            outerDash2++;
            star2 -= 2;
            innerDash2 += 2;
        }
    }
}