A rocket flying 40,000 kilometers per hour is how many tens of thousands of kilometers is it that flies continuously for one month.
每小时飞行4万千米的火箭连续飞行一个月为多少万千米．
<gadget id="calculator">4 * 24 * 30</gadget>
<output>2_880</output>

<result>2_880</result>