The school's circular runway is 500 meters long, and how many laps is 1 kilometer.
学校的环形跑道长500米，多少圈是1千米．
<gadget id="calculator">1_000 / 500</gadget>
<output>2</output>

<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<result>2</result>