The school will be on holiday from January 22nd to February 27th. How many days are there in this holiday?
学校从1月22日开始放假，到2月27日开始上学，这个假期共有多少天．
<gadget id="calculator">31 - 22</gadget>
<output>9</output>

<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<gadget id="calculator">27 - 1</gadget>
<output>26</output>

<gadget id="calculator">10 + 26</gadget>
<output>36</output>

<result>36</result>