How many laps Xiaogang runs along the 400-meter playground track is 2 kilometers.
小刚沿着400米的操场跑道跑多少圈是2千米．
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 / 400</gadget>
<output>5</output>

<result>5</result>