Xiaowen went to bed at 10 o'clock in the evening and got up at 6 o'clock the next day. How many hours did Xiaowen sleep in total?
小文晚上10点睡觉，第二天6点起床，小文共睡了多少小时．
<gadget id="calculator">2 + 6</gadget>
<output>8</output>

<result>8</result>