package Demos;

import java.util.Scanner;

public class DemoClass {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int n = Integer.parseInt(scan.nextLine());
        int width = (2 * n) + 2;

        for (int i = 0; i < n - 1; i++) {
            System.out.println(String.format("%s/%s|  |%s\\%s",
                    repeat(" ", n - 2 - i),
                    repeat(" ", i),
                    repeat(" ", i),
                    repeat(" ", n - 2 - i)));

        }

        System.out.println(repeat("-", width));

        System.out.println(String.format("|%s_%s_%s|",
                repeat(" ", n / 2 - 1),
                repeat(" ", n + 1),
                repeat(" ", n / 2 - 1)));

        System.out.println(String.format("|%s@%s@%s|",
                repeat(" ", n / 2 - 1),
                repeat(" ", n + 1),
                repeat(" ", n / 2 - 1)));

        for (int i = 0; i < n / 2; i++) {
            System.out.println(String.format("|%s|",
                    repeat(" ", n * 2)));
        }

        System.out.println(String.format("|%sOO%s|",
                repeat(" ", n - 1),
                repeat(" ", n - 1)));

        System.out.println(String.format("|%s/  \\%s|",
                repeat(" ", n - 2),
                repeat(" ", n - 2)));

        System.out.println(String.format("|%s||||%s|",
                repeat(" ", n - 2),
                repeat(" ", n - 2)));

        for (int i = 0; i < n + 1; i++) {
            System.out.println(String.format("%s%s%s",
                    repeat("\\", i + 1),
                    repeat("`", n * 2 - i * 2),
                    repeat("/", i + 1)
            ));
        }
    }

    static String repeat(String strToRepeat, int count) {
        StringBuilder text = new StringBuilder();
        for (int i = 0; i < count; i++) {
            text.append(strToRepeat);
        }
        return text.toString();
    }
}