The product is 27, both factors are multiplied by 4 at the same time, what is the product.
积是27，两个因数同时都扩大4倍，积是多少．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">27 * 16</gadget>
<output>432</output>

<result>432</result>