Our school starts to have a holiday on January 3rd, and registration starts on February 11th. How many days are there in total for this holiday?
我们学校1月3日开始放假，2月11日开学报名，这个假期共有多少天．
<gadget id="calculator">29 + 10</gadget>
<output>39</output>

<result>39</result>