How many times is the difference between 3600 and 2000 4.
3600与2000的差是4的多少倍．
<gadget id="calculator">3_600 - 2_000</gadget>
<output>1_600</output>

<gadget id="calculator">1_600 / 4</gadget>
<output>400</output>

<result>400</result>