05. Cat Watch

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

namespace Practice
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int space = n;
            int downSlash = n - 2;
            int count = n - 2;

            for (int i = 1; i <= count; i++)
            {
                Console.WriteLine("{0}||{1}||{0}", new string(' ',space), new string('_',downSlash));
            }
            space = n - 1;
            int innerSpace = n;
            Console.WriteLine("{0}//{1}\\\\{0}", new string(' ', space), new string(' ', innerSpace));
            count = n - 4;
            space = n - 2;
            innerSpace = n + 2;
            for (int i = 1; i <= count; i++)
            {
                if(i == (n - 3) / 2)
                {
                    Console.WriteLine("{0}||{1}||]",new string(' ',space), new string(' ',innerSpace));
                }
                else
                {
                    Console.WriteLine("{0}||{1}||", new string(' ', space), new string(' ', innerSpace));
                }
            }
            space++;
            innerSpace-=2;

            Console.WriteLine("{0}\\\\{1}//{0}", new string(' ', space), new string(' ', innerSpace));
             space = n;
             downSlash = n - 2;
             count = n - 2;

            for (int i = 1; i <= count; i++)
            {
                Console.WriteLine("{0}||{1}||{0}", new string(' ', space), new string('_', downSlash));
            }
        }
    }
}