There are 47 people in the sports field, and 5 people are divided into groups. At least how many people are just finished?
运动场有47个人，5个人分成一组，至少在添多少人正好分完？
<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">50 - 47</gadget>
<output>3</output>

<result>3</result>