There are two layers of books on the bookshelf. The first layer has 18 more books than the second layer, and the second layer has 146 books. How many books are there in total?
书架上放了两层书，第一层比第二层多18本，第二层有146本，两层一共有多少本书？
<gadget id="calculator">146 + 18 + 146</gadget>
<output>310</output>

<result>310</result>