During the seven-day National Day holiday, Xiaogang read a total of 212 pages, and Xiaohong read 31 pages a day. Which one of them read more and how many pages?
国庆七天调休假期，小刚一共看了212页书，小红每天看31页，他们俩谁看的多，多多少页？
<gadget id="calculator">31 * 7</gadget>
<output>217</output>

<gadget id="calculator">217 - 212</gadget>
<output>5</output>

<result>5</result>