A tourist group traveled in Nanjing from February 26 to March 2, 2004. How many days did they stay in Nanjing?
某旅游团2004年2月26日至3月2日在南京旅行，他们在南京的天数是多少天．
<gadget id="calculator">29 - 26</gadget>
<output>3</output>

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

<gadget id="calculator">4 + 2</gadget>
<output>6</output>

<result>6</result>