Aunt Li starts to work at 10:00 in the morning and leaves at 6:00 in the afternoon. How many hours does she work?
李阿姨从上午10：00开始上班，下午6：00下班，她上了多少个小时的班．
<gadget id="calculator">18 - 10</gadget>
<output>8</output>

<result>8</result>