Use three cards 2, 3, 7 to form a two-digit multiplication by one-digit multiplication, what is the maximum product.
用三张卡片2、3、7摆成一个两位数乘一位数的乘法算式，积最大是多少．
<gadget id="calculator">32 * 7</gadget>
<output>224</output>

<result>224</result>