Give me excercise and answer with lifo?

Exercise:
1. Imagine you have a stack of books on your desk. Perform the following operations using the LIFO (Last-In, First-Out) principle:
- Add a new book to the top of the stack.
- Remove the top book from the stack.
- Add two more books to the top of the stack.
- Remove the top book from the stack.
- Add three more books to the top of the stack.
- Remove the top book from the stack.

Answer using LIFO:
- After adding the first book, the stack contains: [Book 1]
- After removing the top book, the stack becomes empty.
- After adding two more books, the stack contains: [Book 2, Book 3]
- After removing the top book, the stack becomes: [Book 2]
- After adding three more books, the stack contains: [Book 2, Book 4, Book 5, Book 6]
- After removing the top book, the stack becomes: [Book 2, Book 4, Book 5]