The school's rectangular playground is 120 meters long and 80 meters wide. Minmin ran around the playground, how many meters did she run?
学校长方形操场的长为120米，宽为80米．敏敏沿着操场跑一圈，她跑了多少米？
<gadget id="calculator">120 + 80</gadget>
<output>200</output>

<gadget id="calculator">200 * 2</gadget>
<output>400</output>

<result>400</result>