Mask PB2018MARCH VK

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

namespace zadacha5
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            var width = (2 * N) + 2;

            // cycle 1
            int spacesTimesOut = (width - 6) / 2;
            int spacesTimesIn = 0;

            for (int c1 = 1; c1 <= N - 1; c1++)
            {
                string total = new string(' ', spacesTimesOut) + "/"
                                + new string(' ', spacesTimesIn)
                                + "|  |" + new string(' ', spacesTimesIn)
                                + "\\";
                spacesTimesIn++;
                spacesTimesOut--;

                Console.WriteLine(total);
            }

            // hard code
            spacesTimesOut = ((width - 4) - (N + 1)) / 2;
            Console.WriteLine(new string('-', width));
            //Console.WriteLine("|" + new string(' ', width -2)+"|");
            Console.WriteLine("|" + new string(' ', spacesTimesOut) + "_" + new string(' ', N + 1) + "_" + new string(' ', spacesTimesOut) + "|");

            Console.WriteLine("|" + new string(' ', spacesTimesOut) + "@" + new string(' ', N + 1) + "@" + new string(' ', spacesTimesOut) + "|");

            // cycle 2

            for (int c2 = 1; c2 <= N / 2; c2++)
            {
                Console.WriteLine("|" + new string(' ', width - 2) + "|");
            }

            // hard code
            spacesTimesOut = (width - 4) / 2;
            Console.WriteLine("|" + new string(' ', spacesTimesOut) + "OO" + new string(' ', spacesTimesOut) + "|");
            spacesTimesOut -= 1;
            Console.WriteLine("|" + new string(' ', spacesTimesOut) + "/  \\" + new string(' ', spacesTimesOut) + "|");
            Console.WriteLine("|" + new string(' ', spacesTimesOut) + "||||" + new string(' ', spacesTimesOut) + "|");

            // cycle 3
            int dashBTimes = 1;
            int dashFTimes = 1;
            int tileTimes = width - 2;
            for (int c3 = 1; c3 <= N; c3++)
            {
                string total = new string('\\', dashBTimes) + new string('`', tileTimes) + new string('/', dashFTimes);
                Console.WriteLine(total);
                dashBTimes++;
                dashFTimes++;
                tileTimes-= 2;
            }

            // hard code

            Console.WriteLine(new string('\\', width/2) + new string('/', width / 2));
        }
    }
}