There are 5 cards, each with a number written on the front and back, the first one is written 0 and 1, and the other four are written 2 and 3, 4 and 5, 6 and 7, 8 and 9 respectively. Now randomly take out three of the cards and put them in a row, how many different three-digit numbers can be formed in total.
有5张卡片，正反面各写有一个数字，第一张上面写的是0和1，其它四张上面分别写着2和3、4和5、6和7、8和9．现在任意取出其中的三张卡片，放成一排，一共可以组成多少个不同的三位数．
<gadget id="calculator">6 * 8 * 9</gadget>
<output>432</output>

<result>432</result>