Subtract 396 from the product of 25 and 47, what is the difference?
用25与47的积减去396，差是多少．
<gadget id="calculator">25 * 47</gadget>
<output>1_175</output>

<gadget id="calculator">1_175 - 396</gadget>
<output>779</output>

<result>779</result>