What is the difference between a four-digit number consisting of 1 and three zeros and eight 25s?
1和3个零组成的四位数，它与8个25相差多少．
<gadget id="calculator">25 * 8</gadget>
<output>200</output>

<gadget id="calculator">1_000 - 200</gadget>
<output>800</output>

<result>800</result>