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

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

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

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