Cat Watch

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 1; i <= n - 2; i++) {
            System.out.printf("%s||%s||%s\n", " ".repeat(n), "_".repeat(n - 2), " ".repeat( n));
        }

        System.out.printf("%s//%s\\\\%s\n", " ".repeat(n - 1), " ".repeat( n), " ".repeat(n - 1));

        for (int i = 1; i <= n - 4; i++) {
            System.out.printf("%s||%s||%s\n", " ".repeat(n - 2), "_".repeat(n + 2), ((i == (n - 3) / 2) ? "]" : ""));
        }

        System.out.printf("%s\\\\%s//%s\n", " ".repeat(n - 1), " ".repeat(n), " ".repeat(n - 1));

        for (int i = 1; i <= n - 2; i++) {
            System.out.printf("%s||%s||%s\n", " ".repeat(n), "_".repeat(n - 2), " ".repeat(n));
        }
    }
}