05 Sword

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

namespace _05_Sword
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine()); //[4...50] 2 * n + 1

            //Top
            string topBord = new string('#', n - 1);
            Console.WriteLine("{0}/^\\{0}", topBord);
            for (int i = 1; i <= n / 2; i++)
            {
                string sharpsTopBord = new string('#', n - i - 1);
                string spasesTopMid = new string(' ', 2 * i + 1);
                Console.WriteLine("{0}.{1}.{0}", sharpsTopBord, spasesTopMid);
            }

            //Middle
            string sharpsMidBord = new string('#', n - n / 2 - 1);
            string spasesMidMid = new string(' ', 2 * (n / 2) + 1);
            string halfSpasesMidMid = new string(' ', (2 * (n / 2)) / 2);
            Console.WriteLine("{0}|{1}S{1}|{0}", sharpsMidBord, halfSpasesMidMid);
            Console.WriteLine("{0}|{1}O{1}|{0}", sharpsMidBord, halfSpasesMidMid);
            Console.WriteLine("{0}|{1}F{1}|{0}", sharpsMidBord, halfSpasesMidMid);
            Console.WriteLine("{0}|{1}T{1}|{0}", sharpsMidBord, halfSpasesMidMid);
            if (n == 4) Console.WriteLine("{0}|{1}|{0}", sharpsMidBord, spasesMidMid);
            for (int i = 0; i < n - 4; i++)
            {
                Console.WriteLine("{0}|{1}|{0}", sharpsMidBord, spasesMidMid);
            }
            Console.WriteLine("{0}|{1}U{1}|{0}", sharpsMidBord, halfSpasesMidMid);
            Console.WriteLine("{0}|{1}N{1}|{0}", sharpsMidBord, halfSpasesMidMid);
            Console.WriteLine("{0}|{1}I{1}|{0}", sharpsMidBord, halfSpasesMidMid);

            Console.WriteLine("@{0}@", new string('=', 2 * n - 1));

            //Bottom
            string sharpsBottBord = new string('#', (n + 3) / 2);
            string spacesBottMid = new string(' ', 2 * n + 1 - (((n + 3) / 2) * 2 + 2));
            string dotsBottMid = new string('.', 2 * n + 1 - (((n + 3) / 2) * 2 + 2));
            for (int i = 0; i < n / 2; i++)
            {
                Console.WriteLine("{0}|{1}|{0}", sharpsBottBord, spacesBottMid);
            }
            Console.WriteLine("{0}\\{1}/{0}", sharpsBottBord, dotsBottMid);
        }
    }
}