using System;

namespace Java
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int countofwhitespaces = 0;
            int kliomba = ((3*n)+6) - (n+2);
            int width = (n * 3) + 6;


            for (int i = 0; i < n; i++)
            {
                Console.WriteLine("{0}~ ~ ~{1}", new string(' ', n), new string(' ', n*2+3));
            }
            Console.WriteLine("{0}", new string('=', (3*n+6)-1));

            if (n % 2 == 0)
            {
                for (int i = 0; i < n/2-1; i++)
                {
                    Console.WriteLine("|{0}|{1}|", new string('~', n*2+4), new string(' ', n-1));
                }
                Console.WriteLine("|{0}JAVA{0}|{1}|", new string('~', n), new string(' ', n-1));
                for (int i = 0; i < n / 2 - 2; i++)
                {
                    Console.WriteLine("|{0}|{1}|", new string('~', n * 2 + 4), new string(' ', n - 1));
                }

            }
            else
            {
                for (int i = 0; i <(n-3)/2; i++)
                {
                    Console.WriteLine("|{0}|{1}|", new string('~', n * 2 + 4), new string(' ', n - 1));
                }
                Console.WriteLine("|{0}JAVA{0}|{1}|", new string('~', n), new string(' ', n - 1));
                for (int i = 0; i < (n-3)/2; i++)
                {
                    Console.WriteLine("|{0}|{1}|", new string('~', n * 2 + 4), new string(' ', n - 1));

                }
            }

            Console.WriteLine("{0}", new string('=', (3 * n + 6) - 1));

            for (int i = 0; i < n; i++)
            {
                Console.WriteLine("{0}\\{1}/", new string(' ', countofwhitespaces), new string('@', kliomba));
                countofwhitespaces++;
                kliomba = kliomba - 2;

            }

            Console.WriteLine("{0}", new string('=', width-n));
        }
    }
}