The school playground is a rectangle, 130 meters long and 60 meters wide. How many meters is it to run two laps along the playground?
学校操场是一个长方形，长130米，宽60米．明明沿着操场跑两圈是多少米？
<gadget id="calculator">130 + 60</gadget>
<output>190</output>

<gadget id="calculator">190 * 2 * 2</gadget>
<output>760</output>

<result>760</result>