Bat Goiko Tower

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

namespace BatGoikoTower
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int outerDots = n - 1;
            int innerElements = (2 * n) - (outerDots * 2);

            //first row
            Console.WriteLine("{0}/\\{0}", new string('.', outerDots));
            outerDots--;

            //other rows

            for (int row = 1; row < n; row++)
            {
                if (row == 1 || row == 3 || row == 6 || row == 10 || row == 15 || row == 21 || row == 28 || row == 36)
                {
                    Console.WriteLine("{0}/{1}\\{0}", new string('.', outerDots), new string('-', innerElements));
                }

                else
                {
                    Console.WriteLine("{0}/{1}\\{0}", new string('.', outerDots), new string('.', innerElements));
                }
                outerDots--;
                innerElements += 2;

            }

        }
    }
}