10. Diamond

using System;

namespace Diamond
{
    class Program
    {
        static void Main(string[] args)
        {
            int num = int.Parse(Console.ReadLine());

            for (int i = 0; i < num / 2 + (num % 2); i++)
            {
                string outDash = new string('-', (num - 1) / 2 - i);
                string border = "*";

                if (i == 0)
                {
                    if (num % 2 == 0)
                    {
                        border = "**";
                    }
                    Console.WriteLine(outDash + border + outDash);
                }
                else
                {
                    string inDash = new string('-', i * 2);
                    if (num % 2 == 1)
                    {
                        inDash = new string('-', i * 2 - 1);
                    }
                    Console.WriteLine(outDash + border + inDash + border + outDash);
                }
            }

            for (int i = num / 2 - (1 + (num - 1) % 2); i >= 0; i--)
            {
                string outDash = new string('-', (num - 1) / 2 - i);
                string border = "*";

                if (i == 0)
                {
                    if (num % 2 == 0)
                    {
                        border = "**";
                    }
                    Console.WriteLine(outDash + border + outDash);
                }
                else
                {
                    string inDash = new string('-', i * 2);
                    if (num % 2 == 1)
                    {
                        inDash = new string('-', i * 2 - 1);
                    }
                    Console.WriteLine(outDash + border + inDash + border + outDash);
                }
            }
        }
    }
}