Диамант

using System;

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

            int width = 5 * n;
            int hight = 3 * n + 2;

            for (int row = 1 ;row <= n ; row++)
            {
                if (row == 1)
                {
                    Console.Write("{0}{2}{1}{2}{0}",
                              new string('.', n + 1 - row),
                              new string('*', (width - (2 * n) - 4) + row * 2),
                              new string('*', 1));
                }
                else
                {
                    Console.Write("{0}{2}{1}{2}{0}",
                              new string('.', n + 1 - row),
                              new string('.', (width - (2 * n) - 4) + row * 2),
                              new string('*', 1));
                }
                Console.WriteLine();
            }
            Console.Write("{0}", new string('*', width));
            Console.WriteLine();

            for (int row = 0; row <= hight -(n + 1)- 1; row++)
            {
                if (row == (hight - (n + 1) - 1))
                {
                    Console.Write("{0}{2}{1}{2}{0}",
                              new string('.', 1 + row),
                              new string('*', (width - 4) - row * 2),
                              new string('*', 1));
                    Console.WriteLine();
                }
                else
                {
                    Console.Write("{0}{2}{1}{2}{0}",
                              new string('.', 1 + row),
                              new string('.', (width - 4) - row * 2),
                              new string('*', 1));
                    Console.WriteLine();
                }
            }
        }
    }
}

//                            Диамант

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