The length of the hour hand of a clock is 30 mm, and the length of the minute hand is 50 mm. After a day (24 hours) of this clock, the distance traveled by the tip of the hour hand is less than the distance traveled by the tip of the hand by how many centimeters?
一只钟的时针长30毫米，分针长50毫米，这只钟经过一天(24小时)，时针尖端走过的路程比分针尖端走过的路程少多少厘米？
<gadget id="calculator">2 * 3.14 * 50 * 24</gadget>
<output>7_536</output>

<gadget id="calculator">2 * 3.14 * 30 * 2</gadget>
<output>376.8</output>

<gadget id="calculator">7_536 - 376.8</gadget>
<output>7_159.2</output>

<result>7_159.2</result>