using System;

class Task4
{
    static void Main()
    {
        int N = int.Parse(Console.ReadLine());
        string firstHalfRow = new string ('.',N-2);
        string secondHalfRow = firstHalfRow.Insert(N / 2 - 1, "\\/");
        firstHalfRow=firstHalfRow.Insert(N/2-1,"/\\");
        string[] secondHalfOfTheCarper = new string[N / 2];
        secondHalfOfTheCarper[N/2-1] = secondHalfRow;
        Console.WriteLine(firstHalfRow);
        int j = N / 2;
        int p = N/2-2;
        for (int i = 1; i < N/2; i++,j++,p--)
        {
            if (i % 2 == 1)
            {

                firstHalfRow = firstHalfRow.Insert(j,"  ");
                secondHalfRow = secondHalfRow.Insert(j,"  ");
                Console.WriteLine(firstHalfRow.Substring(i,N));
                secondHalfOfTheCarper[p] = secondHalfRow.Substring(i, N);
            }
            else
            {
                firstHalfRow = firstHalfRow.Insert(j, "/\\");
                Console.WriteLine(firstHalfRow.Substring(i , N));
                secondHalfRow = secondHalfRow.Insert(j, "\\/");
                secondHalfOfTheCarper[p] = secondHalfRow.Substring(i, N);
            }
        }
        for (int i = 0; i < N/2; i++)
        {
            Console.WriteLine(secondHalfOfTheCarper[i]);
        }
    }
}