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

namespace _05.Butterfly
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine());

            if (n==3)
            {
                Console.WriteLine(new string('*',1)+new string('\\',1)
                    +new string(' ',1)+new string('/',1)+new string('*',1));
                Console.WriteLine(new string(' ',2)+new string('@',1));
                Console.WriteLine(new string('*',1)+new string('/',1)
                    +new string(' ',1)+new string('\\',1)+new string('*',1));
            }
            else
            {
                for (int i = 1; i <= n-2; i++)
                {
                    if (i % 2 !=0)
                    {
                        Console.WriteLine(new string('*',n-2)+new string('\\',1)
                            +new string(' ',1)+new string('/',1)+new string('*',n-2));
                    }
                    else
                    {
                        Console.WriteLine(new string('-', n - 2) + new string('\\', 1)
                      + new string(' ', 1) + new string('/', 1) + new string('-', n - 2));
                    }
                }
                Console.WriteLine(new string(' ',n-1)+new string('@',1));
                for (int i = 1; i <= n-2; i++)
                {
                    if (i % 2 != 0)
                    {
                        Console.WriteLine(new string('*', n - 2) + new string('/', 1)
                            + new string(' ', 1) + new string('\\', 1) + new string('*', n - 2));
                    }
                    else
                    {
                        Console.WriteLine(new string('-', n - 2) + new string('/', 1)
                      + new string(' ', 1) + new string('\\', 1) + new string('-', n - 2));
                    }
                }
            }
        }
    }
}