TheExplorer

using System;

class TheExplorer
{
    static void Main()
    {
        int input = int.Parse(Console.ReadLine());
        string filling = new string ('-',(input / 2));
        string diamond = "*";
        string topLine = filling + diamond + filling;
        Console.WriteLine(topLine);
        int count;
        for (count = 1; count < (input - 2); count++)
        {
            if (count % 2 == 0)
            {
                string draw = new string('-', ((input / 2) - (count / 2)));
                string midDraw = new string('-',(count-1));
                Console.WriteLine(draw + diamond + midDraw + diamond + draw);
            }
        }
        string middle = new string('-', (input - 2));
        Console.WriteLine(diamond + middle  + diamond);
        for (count = (input - 3); count > 1; count--)
        {
            if (count % 2 == 0)
            {
                string draw = new string('-', ((input / 2) - (count / 2)));
                string midDraw = new string('-', (count - 1));
                Console.WriteLine(draw + diamond + midDraw + diamond + draw);
            }
        }
        Console.WriteLine(topLine);
    }
}