There are 12 bookshelves in the library of Wu Ji Primary School, each book has 6 floors, and each floor can hold 50 books. How many books can these bookshelves hold in total?
吴纪小学校图书室有12个书架，每个书有6层，每层可放50本书，这些书架一共可放多少本书？
<gadget id="calculator">50 * 6 * 12</gadget>
<output>3_600</output>

<result>3_600</result>