A pig weighs 108 kg, and an elephant weighs three times that of a pig. how much do they weigh
一头猪重108千克，一头大象的重量是猪的3倍．他们一共重多少
<gadget id="calculator">108 * 3</gadget>
<output>324</output>

<gadget id="calculator">108 + 324</gadget>
<output>432</output>

<result>432</result>