Mask

import java.util.Scanner;

public class mask {
    public static void main(String[] agrs) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());
        //upper part
        for (int i = 0; i < n - 1; i++) {
            System.out.println(repeatStr(" ", n - 2 - i)
                    + "/" + repeatStr(" ", i) + "|  |"
                    + repeatStr(" ", i) + "\\");

        }

        System.out.println(repeatStr("-", 2 * n + 2));

        System.out.println("|" + repeatStr(" ", n / 2 - 1)
                + "_" + repeatStr(" ", n + 1)
                + "_" + repeatStr(" ", n / 2 - 1) + "|");

        System.out.println("|" + repeatStr(" ", n / 2 - 1)
                + "@" + repeatStr(" ", n + 1)
                + "@" + repeatStr(" ", n / 2 - 1) + "|");
        for (int i = 0; i < n / 2; i++) {
            System.out.println("|" + repeatStr(" ", 2 * n) + "|");

        }
        System.out.println("|" + repeatStr(" ", n - 1) + "OO" + repeatStr(" ", n - 1) + "|");
        System.out.println("|" + repeatStr(" ", n - 2) + "/  \\" + repeatStr(" ", n - 2) + "|");
        System.out.println("|" + repeatStr(" ", n - 2) + "||||" + repeatStr(" ", n - 2) + "|");

        for (int i = 0; i < n + 1; i++) {
            System.out.println(repeatStr("\\", 1 + i)
                    + repeatStr("`", 2 * n - 2 * i)
                    + repeatStr("/", 1 + i));

        }
    }

    static String repeatStr(String str, int count) {
        String text = "";
        {
            for (int j = 0; j < count; j++) {
                text = text + str;
            }

        }
        return text;
    }
}