How many minutes did it take for the minute hand to go from "3" to "8".
分针从"3"走到"8"经过了多少分钟．
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>