Lan Lan has 3 different tops, 2 different pairs of trousers, and 3 different pairs of shoes. How many different outfits can be matched at most?
兰兰有3件不同的上衣，2条不同的裤子，3双不同的鞋子，最多可以搭配成多少种不同的装束？
<gadget id="calculator">2 * 3 * 3</gadget>
<output>18</output>

<result>18</result>