ProgMasters_Villa

import java.util.Scanner;

public class Proba {
    public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    int n=scan.nextInt();
    scan.close();

    String [][]array = new String[n][n+1];

        for (int i = 0; i <n; i++) {
            for (int j = 0; j <n+1 ; j++) {
                if (i==j && i<n/2) System.out.print("\\");
                else if ((i+j==n) && i<n/2) System.out.print("/");
                else if (j==n/2) System.out.print("|");
                else System.out.print(".");

            }
            System.out.println();
        }

    }
}