There are 2 adults and 3 children, and each adult hugs each child once, how many times should they hug each child in total?
有2个大人和3个小孩，每个大人抱每个小孩一次，一共要抱多少次．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>