using System;

​

public class Program

{

    static void PrintHeaderFooter(int n)

    {

        Console.WriteLine(new string ('-', 2 * n));

    }

​

    static void PrintMiddleRow(int n)

    {

        Console.Write("-");

        for (int i = 0; i < n - 1; i++)

        {

            Console.Write("\\/");

        }

​

        Console.Write("-");

        Console.WriteLine();

    }

​

    public static void Main()

    {

        int input = int.Parse(Console.ReadLine());

        PrintHeaderFooter(input);

        PrintMiddleRow(input);

    }

}