Two factors are multiplied together, the product is 20, one factor is multiplied by 5, and the other factor is multiplied by 2, what is the product at this time?
两个因数相乘，积是20，一个因数乘5，另一个因数乘2，这时的积是多少．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">20 * 10</gadget>
<output>200</output>

<result>200</result>