sprinkler truck travels 50 meters per minute, the width of sprinkling water is 9 meters, and the sprinkler truck runs for 6 minutes, how much area can it sprinkle water on?
一辆洒水车，每分钟行驶50米，洒水的宽度是9米，洒水车行驶6分钟，能给多大面积的地面洒上水？
<gadget id="calculator">50 * 6</gadget>
<output>300</output>

<gadget id="calculator">300 * 9</gadget>
<output>2_700</output>

<result>2_700</result>