Car

using System;
    class Car
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());

            int outerDots1 = n;
            int innerDots1 = n;

            Console.WriteLine("{0}{1}{0}",new string('.', n), new string('*', n));

            for (int i = 0; i < n/2-1; i++)
            {
                Console.WriteLine("{0}*{1}*{0}", new string('.', outerDots1-1-i), new string('.',innerDots1+2*i));
            }

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

            for (int i = 0; i < n/2-2; i++)
            {
                Console.WriteLine("*{0}*", new string('.', 3*n-2));
            }

            Console.WriteLine(new string('*', 3*n));

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

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