logo

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        int x = int.Parse(Console.ReadLine());
        int z = x / 2 + 1;
        int length = 3*x - 2;
        int height = length;

        z = z - 1; //coz of zero
        for (int j = 0; j < length; j++) //rows
        {
            for (int i = 0; i < length; i++) //cols
            {
                if (i == z - j)
                {
                    Console.Write("*");
                }
                else if((i == z + j)&&(j < 2*x-1))
                {
                    Console.Write("*");
                }
                else if((i==length - z - j -1)&&(j< 2*x-1))
                {
                    Console.Write("*");
                }
                else if(i == length - z + j -1)
                {
                    Console.Write("*");
                }
                else if ((i == z+j+1 -(x*2-1)) && (j >= 2 * x - 1)) //last
                {
                    Console.Write("*");
                }
                else if ((i == length - z -j-2 +(x*2-1)) && (j >= 2 * x - 1)) //last right
                {
                    Console.Write("*");
                }
                else
                {
                    Console.Write(".");
                }

            }
            Console.WriteLine();
        }

    }
}