EasterMister

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;



class FourthTask
{
    static void Main()
    {
        List<string> list = new List<string>();
        StringBuilder sb = new StringBuilder();
        int inputNumber = int.Parse(Console.ReadLine());
        Console.Write(new string('.', ((inputNumber * 3 + 1) - (inputNumber - 1)) / 2));
        Console.Write(new string('*', inputNumber - 1));
        Console.WriteLine(new string('.', ((inputNumber * 3 + 1) - (inputNumber - 1)) / 2));
        int drawArea = inputNumber * 3 - 1;
        int tempNumber = inputNumber-2;
        int tempInside = inputNumber + 1;
        for (int i = 1; i < inputNumber-1; i++)
        {
            sb.Append(".");
            sb.Append(new string('.', tempNumber));
            sb.Append('*');
            sb.Append(new string('.', tempInside));
            sb.Append('*');
            sb.Append(new string('.', tempNumber));
            sb.Append(".");
            if (tempNumber > 0)
            {
                tempNumber -= 2;
                tempInside += 4;
            }
            list.Add(sb.ToString());
            sb.Clear();
        }
        for (int i = 0; i < list.Count; i++)
        {
            Console.WriteLine(list[i]);
        }

        Console.Write(".*");
        for (int i = 0; i < ((inputNumber*3+1)-5)/2; i++)
        {
            Console.Write(".#");
        }
        Console.WriteLine(".*.");
        Console.Write(".*#");
        for (int i = 0; i < ((inputNumber * 3 + 1) - 5) / 2; i++)
        {
            Console.Write(".#");
        }
        Console.WriteLine("*.");

        for (int i = list.Count-1; i >=0; i--)
        {
            Console.WriteLine(list[i]);
        }
        Console.Write(new string('.', ((inputNumber * 3 + 1) - (inputNumber - 1)) / 2));
        Console.Write(new string('*', inputNumber - 1));
        Console.WriteLine(new string('.', ((inputNumber * 3 + 1) - (inputNumber - 1)) / 2));
    }
}