The children's lunch has 2 meat dishes, 3 vegetarian dishes, and 2 soups. The children's daily lunch is one meat dish, one vegetarian dish and one soup. How many different tower matching methods are there?
小朋友的午餐有2份荤菜、3份素菜，2份汤，小朋友们每天的午餐是一荤一素一汤．一共有多少种不同的塔配方法．
<gadget id="calculator">2 * 3 * 2</gadget>
<output>12</output>

<result>12</result>