The second hand goes from the number 3 to the number 5, what is the elapsed time
秒针从数字3走到数字5，经过的时间是多少
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>