The minute hand of a watch is 2 cm long, how many centimeters does the tip of the watch move in a day and night.
一块手表的分针长2厘米，它的针尖一昼夜走多少厘米．
<gadget id="calculator">2 * 3.14 * 2 * 24</gadget>
<output>301.44</output>

<result>301.44</result>