using System; ochila

public class Program
{
    public static void Main()
    {

		int n  = int.Parse(Console.ReadLine());
		int numberAsterisk = 2*n;
		int numberSpaces = n;

		string 	firstLineAndLastLine = "{0}{1}{0}";
		Console.WriteLine(string.Format(firstLineAndLastLine,new string('*',numberAsterisk), new string(' ', numberSpaces)));

		for (int row = 2; row < n; row++)
		{
			Console.Write('*');
			Console.Write(new string('/', numberAsterisk - 2));

			Console.Write('*');
			double num = Math.Ceiling(n/2.0);
			if (row == num)
			{
				Console.Write(new string('|', n));
			}
			else
			{
			Console.Write(new string(' ', n));
			}
			Console.Write('*');
			Console.Write(new string ('/', numberAsterisk-2));

			Console.Write('*');
			Console.WriteLine();

		}






		Console.WriteLine(string.Format(firstLineAndLastLine,new string('*',numberAsterisk), new string(' ', numberSpaces)));
	}
}