using System;
using System.Collections.Generic;
using System.Linq;

class BitsInverter
{
    static void Main()
    {
        int n = int.Parse(Console.ReadLine());
        int dots = n / 2;
        int ands = n - dots;
        int middleDots = n;
        Console.Write(new string('.',dots));
        Console.Write(new string('&', ands));
        Console.Write(new string('.', middleDots));
        Console.Write(new string('&', ands));
        Console.WriteLine(new string('.', dots));
        int length = (n / 2) - 1;
        int asteriscs = n / 2;
        dots--;
        for (int i = 0; i < length; i++,asteriscs++,dots--)
        {
            Console.Write(new string('.', dots));
            Console.Write('&');
            Console.Write(new string('*', asteriscs));
            Console.Write('&');
            Console.Write(new string('.', middleDots));
            Console.Write('&');
            Console.Write(new string('*', asteriscs));
            Console.Write('&');
            Console.WriteLine(new string('.', dots));
        }
        Console.Write(new string('.', dots));
        Console.Write('&');
        Console.Write(new string('*', asteriscs));
        Console.Write('&');
        Console.Write(new string('=', middleDots));
        Console.Write('&');
        Console.Write(new string('*', asteriscs));
        Console.Write('&');
        Console.WriteLine(new string('.', dots));
        dots++;
        asteriscs--;
        for (int i = 0; i < length; i++, asteriscs--, dots++)
        {
            Console.Write(new string('.', dots));
            Console.Write('&');
            Console.Write(new string('*', asteriscs));
            Console.Write('&');
            Console.Write(new string('.', middleDots));
            Console.Write('&');
            Console.Write(new string('*', asteriscs));
            Console.Write('&');
            Console.WriteLine(new string('.', dots));
        }
        Console.Write(new string('.', dots));
        Console.Write(new string('&', ands));
        Console.Write(new string('.', middleDots));
        Console.Write(new string('&', ands));
        Console.WriteLine(new string('.', dots));
    }
}