using System;

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

        for (int i = 0; i < n-2; i++)
        {
            if (i % 2 == 0)
            {
                Console.WriteLine("{0}\\ /{0}" + new string('*', n - 2));
            }
            else
            {
                Console.WriteLine("{0}\\ /{0}" + new string('-', n - 2));
            }
        }

        Console.WriteLine("{0}@{0}" + new string(' ', n - 1));

        for (int i = 0; i < n - 2; i++)
        {
            if (i % 2 == 0)
            {
                Console.WriteLine("{0}/ \\{0}", new string('*', n - 2));
            }
            else
            {
                Console.WriteLine("{0}/ \\{0}" + new string('-', n - 2));
            }
        }
    }
}