There are 8 bookshelves, each with 7 floors, and each floor can hold 125 books. How many books can these bookshelves hold in total?
有8个书架，每个书架都是7层，每层可以放书125本，这些书架一共可以放多少本书？
<gadget id="calculator">125 * 7 * 8</gadget>
<output>7_000</output>

<result>7_000</result>