go to work at 8:00 every morning, leave work at 6:00 pm, and take an hour break at noon. How many hours do I work in a day?
我每天早上8：00上班，下午6：00下班，中午休息1小时，我一天工作多少小时．
<gadget id="calculator">12 - 8 - 1</gadget>
<output>3</output>

<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<result>9</result>