A library bought 6 bookshelves, each shelf has 5 layers, and each layer can hold 35 books. How many books can these bookshelves hold in total?
某图书馆买来6个书架，每个书架有5层，每层可以放35本书，这些书架一共可以放多少本书？
<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">35 * 30</gadget>
<output>1_050</output>

<result>1_050</result>