230 - Borrowers

I mean your borrowers of books -those mutilators of collections, spoilers of the symmetry of shelves, andcreators of odd volumes.

- (Charles Lamb, Essays of Elia (1823)`The Two Races of Men')

Like Mr. Lamb, librarians have theirproblems with borrowers too. People don't put books back where they should.Instead, returned books are kept at the main desk until a librarian is free toreplace them in the right places on the shelves. Even for librarians, puttingthe right book in the right place can be very time-consuming. But since manylibraries are now computerized, you can write a program to help.

When a borrower takes out or returns abook, the computer keeps a record of the title. Periodically, the librarianswill ask your program for a list of books that have been returned so the bookscan be returned to their correct places on the shelves. Before they arereturned to the shelves, the returned books are sorted by author and then titleusing the ASCII collating sequence. Your program should output the list ofreturned books in the same order as they should appear on the shelves. For eachbook, your program should tell the librarian which book (including thosepreviously shelved) is already on the shelf before which the returned bookshould go.

Input

First, the stock of the library will belisted, one book per line, in no particular order. Initially, they are all onthe shelves. No two books have the same title. The format of each line will be:

``title" by author

The end of the stock listing will be markedby a line containing only the word:

END

Following the stock list will be a seriesof records of books borrowed and returned, and requests from librarians forassistance in restocking the shelves. Each record will appear on a single line,in one of the following formats:

BORROW ``title"

RETURN ``title"

SHELVE

The list will be terminated by a linecontaining only the word:

END

Output

Each time the SHELVE commandappears, your program should output a series of instructions for the librarian,one per line, in the format:

Put ``  " after ``  "

or, for the special case of the book beingthe first in the collection:

Put ``title" first

After the set of instructions foreach SHELVE, output a line containing only the word:

END

Assumptions & Limitations:

1. A title is at most 80 characterslong.

2. An author is at most 80 characterslong.

3. A title will not contain the doublequote (") character.

SampleInput

"The Canterbury Tales" byChaucer, G.

"Algorithms" by Sedgewick, R.

"The C Programming Language" by Kernighan,B. and Ritchie, D.

END

BORROW "Algorithms"

BORROW "The C ProgrammingLanguage"

RETURN "Algorithms"

RETURN "The C ProgrammingLanguage"

SHELVE

END

SampleOutput

Put "The C Programming Language"after "The Canterbury Tales"

Put "Algorithms" after "TheC Programming Language"

END