A rectangular playground is 45 meters long and 35 meters wide. Xiaoli ran 4 laps along the side of the playground. How many meters did she run in total?
一个长方形操场，长45米，宽35米，小丽沿操场边跑了4圈，一共跑了多少米？
<gadget id="calculator">45 + 35</gadget>
<output>80</output>

<gadget id="calculator">80 * 2 * 4</gadget>
<output>640</output>

<result>640</result>