Library Catalog Management

You are tasked with managing a library catalog by processing a series of queries.

There are three types of queries:

• 1 ID title author: Add a new book with the specified ID, title, and author. If a book with the same ID already exists, it should be replaced by the new information.
• 2 ID: Retrieve and print the details of the book with the given ID in the format: Title: [title], Author: [author]. If the book is not found, output Book not found.
• 3 ID: Remove the book with the given ID from the catalog.

Each query is provided on a separate line. The output should be produced only for queries of type 2, in the same order as the queries appear.

Input Format:

The first line contains an integer n (where \(n \ge 1\)) denoting the number of queries. The following n lines each contain a query in one of the three formats described above.

Output Format:

For each query of type 2, output a single line with the information of the book in the format shown above or output Book not found if the book does not exist.

Note: All queries are processed sequentially, and the state of the catalog updates accordingly.

inputFormat

The input begins with an integer n on the first line, indicating the number of queries. Each of the following n lines contains a query in one of the following formats:

• 1 ID title author
• 2 ID
• 3 ID

Here, ID is an integer and title and author are strings (without spaces). The queries are provided in stdin.

outputFormat

For each query of type 2, output the book details as a single line to stdout in the format:

Title: [title], Author: [author]

If the book is not present in the catalog, output:

Book not found

Outputs must appear in the same order as the queries.

## sample

2
1 101 The_Great_Gatsby F._Scott_Fitzgerald
2 101

Title: The_Great_Gatsby, Author: F._Scott_Fitzgerald