using System;
class Plane
{
    static void Main()
    {
            int n = int.Parse(Console.ReadLine());
            int outDots = (3*n-1)/2; 
            int dots = outDots-1;
            int innerDots = 1;
            Console.WriteLine("{0}*{0}", new string('.', outDots));
            for (int i = 1; i <= (n+2); i+=2)
            {
                Console.WriteLine("{0}*{1}*{0}", new string('.', dots),
                                                  new string('.', innerDots));
                dots--;
                innerDots+=2;
            }
            for (int i = 1; i < n - 2; i += 2)
            {
                Console.WriteLine("{0}*{1}*{0}", new string('.', dots - i),
                                                  new string('.', innerDots + 2 * i));
            }
            Console.WriteLine("*{0}*{1}*{0}*", new string('.', n - 2), new string('.', n));
        
        for (int i = 0; i < (n - 2) / 2; i++)
        {
            Console.WriteLine("*{0}*{1}*{2}*{1}*{0}*", new string('.', n - 4 - 2 * i), new string('.', 1 + 2 * i), new string('.', n));
        }
        for (int i = 0; i < n - 1; i++)
        {
            Console.WriteLine("{0}*{1}*{0}", new string('.', n - 1 - 1 * i), new string('.', n + 2 * i));
        }
        Console.WriteLine("{0}", new string('*', 3 * n));
    }
}