Aunt Zhang's house was decorated from February 26, 2008 to April 5, how many days did it take?
张阿姨家从2008年2月26日开始装潢，到4月5日结束，一共用了多少天．
<gadget id="calculator">29 - 26</gadget>
<output>3</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">4 + 31 + 5</gadget>
<output>40</output>

<result>40</result>