car

car
enter only even number

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

namespace _12.Car
{
    class Car
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int befor = n - 1;
            int iner = n;
            {
                Console.WriteLine(new string('.', n) + new string('*', n) +
                    new string('.', n));
            }
            for (int i = 0; i < (n / 2) - 1; i++)
            {
                Console.Write(new string('.', befor));
                Console.Write(new string('*', 1));
                Console.Write(new string('.', iner));
                Console.Write(new string('*', 1));
                Console.WriteLine(new string('.', befor));
                befor -= 1;
                iner += 2;
            }
            Console.WriteLine(new string('*', n / 2 + 1) + new string('.', ((n * 3) - (2 * (n / 2 + 1)))) + (new string('*', n / 2 + 1)));
            for (int i = 0; i < (n / 2) - 2; i++)
            {
                Console.Write(new string('*', 1));
                Console.Write(new string('.', n * 3 - 2));
                Console.WriteLine(new string('*', 1));
            }
            Console.WriteLine(new string('*', n * 3));
            for (int i = 0; i < (n / 2) - 2; i++)
            {
                Console.WriteLine(new string('.', n / 2) + new string('*', 1) + new string('.', n / 2 - 1) + new string('*', 1) + new string('.', n - 2) +
                    new string('*', 1) + new string('.', n / 2 - 1) + new string('*', 1) + new string('.', n / 2));
            }
            Console.WriteLine(new string('.', n / 2) + new string('*', n / 2 + 1) + new string('.', (n *2)-(n+2)) + new string('*', n / 2 + 1)
                + new string('.', n / 2));
        }
    }
}