using System;

public class Program

{

    public static void Main()

    {

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

        //if (side % 2 == 0)

            //Console.WriteLine("Odd number needed");

        //else 

        {

            Console.Write("+ ");

            for (int i = 0; i < side-2; i++)

            //Console.Write(new string('-', side-2));

                Console.Write("- ");

            Console.WriteLine("+");

            for (int row = 0; row < side-2; row++)

            {

                {

                    Console.Write("| ");

                    for (int i = 0; i < side - 2; i++)

                    {

                        Console.Write("- ");

                    }

                    Console.WriteLine("| ");

                }

            }

            Console.Write("+ ");

            for (int i = 0; i < side-2; i++)

            //Console.Write(new string('-', side-2));

                Console.Write("- ");

            Console.WriteLine("+ ");

        }

    }

}