using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());


                for(int i =0;i<n;i++)
                {
                    if(i==0||i==n-1)
                    {
                        PrintTopAndBottomPart(n);
                    }

                    else
                    {
                        PrintMiddlePart(n, i);
                    }
                }


        }
        static void PrintTopAndBottomPart(int n)
        {
            string topAndBottom = new string('*', 2*n);
            string emptySpace = new string(' ', n);
            Console.WriteLine("{0}{1}{0}",topAndBottom,emptySpace);
        }
       static void PrintMiddlePart(int n, int i)
        {
            string Lens = new string('/', 2 * n - 2);
            string middleframe = string.Format("{0}{1}{0}", "*", Lens);
            string Bridge = new string(' ', n);
            if(i==n/2)
            {
                Bridge = new string('|',n);
            }
           Console.WriteLine("{0}{1}{0}",middleframe,Bridge);
        }
    }
}