There are 3 different jackets, 3 different pairs of pants and 3 different pairs of shoes, how many different clothes can be formed in total.
有3件不同的上衣，3条不同的裤子和3双不同的鞋子，一共可组成多少种不同的穿着．
<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>

<result>27</result>