The product of two factors is 1000. Now multiply one of the factors by 4 and divide the other by 4. What is the product?
两个因数的积是1000，现将其中一个因数乘4，另一个因数除以4，积是多少．
<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<gadget id="calculator">1_000 * 1</gadget>
<output>1_000</output>

<result>1_000</result>