Ning Ning made 2 tops and 3 skirts for Barbie dolls, how many different suits can be matched.
宁宁给芭比娃娃做了2件上衣和3条裙子，可以搭配出多少种不同的套装．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>