Library Book Inventory

You are maintaining an inventory of books in a library. Each book has a title, author, and a publication year. You need to sort this inventory: first by publication year in ascending order, then by title in alphabetical order if the years are the same. Each input line is formatted as 'title,author,year'. Output the sorted list, one per line, in the same format. Example Input: The Hobbit,J.R.R. Tolkien,1937 1984,George Orwell,1949 Brave New World,Aldous Huxley,1932 Moby Dick,Herman Melville,1851 Example Output: Moby Dick,Herman Melville,1851 Brave New World,Aldous Huxley,1932 The Hobbit,J.R.R. Tolkien,1937 1984,George Orwell,1949