03

using System;

class Program
{
    static char letter = '@';

    static void Main()
    {
        int n = int.Parse(Console.ReadLine());
        int innerDieses = n - 2;
        int outerTildas = 1;

        if (n == 1)
        {
            Console.WriteLine("A");
        }
        else
        {
            Console.WriteLine("{0}{1}{2}", IncreasedLetter(), new string('#', innerDieses), IncreasedLetter());
            innerDieses -= 2;

            if(n > 3)
            {
                for (int i = 0; i < n / 2 - 1; i++)
                {
                    Console.WriteLine("{0}{1}{2}{3}{0}", new string('~', outerTildas), IncreasedLetter(), new string('#', innerDieses), IncreasedLetter());
                    innerDieses -= 2;
                    outerTildas++;
                }
            }

            Console.WriteLine("{0}{1}{0}", new string('-', n / 2), IncreasedLetter());

            innerDieses = 1;
            outerTildas -= 1;

            if (n > 3)
            {
                for (int i = 0; i < n / 2 - 1; i++)
                {
                    Console.WriteLine("{0}{1}{2}{3}{0}", new string('~', outerTildas), IncreasedLetter(), new string('#', innerDieses), IncreasedLetter());
                    innerDieses += 2;
                    outerTildas--;
                }
            }

            Console.WriteLine("{0}{1}{2}", IncreasedLetter(), new string('#', innerDieses), IncreasedLetter());

        }
    }

    static string IncreasedLetter()
    {
        letter++;

        if((int)letter == 91)
        {
            letter = 'A';
        }

        return letter.ToString();
    }
}