using System;

public class Startup
{
    public static void Main()
    {
        int n = int.Parse(Console.ReadLine());

        // First row
        Console.Write(new string('*', 2 * n));
        Console.Write(new string(' ', n));
        Console.WriteLine(new string('*', 2 * n));

        // Middle part
        for (int row = 1; row <= n - 2; row++)
        {

            Console.Write("*");
            Console.Write(new string('/', 2 * n - 2));
            Console.Write("*");
            Console.Write(new string('|', n));
            Console.Write('*');
            Console.Write(new string('/', 2 * n - 2));
            Console.Write("*");
            Console.WriteLine();
        }

        // Last row
        Console.Write(new string('*', 2 * n));
        Console.Write(new string(' ', n));
        Console.WriteLine(new string('*', 2 * n));

    }
}