A person produces 35 kilograms of waste per month, and how much waste does a family of three produce in a year?
一个人每月产生35千克垃圾，一家三口人，一年要产生多少垃圾？
<gadget id="calculator">35 * 12 * 3</gadget>
<output>1_260</output>

<result>1_260</result>