The standard basketball court stipulated by FIBA is 28 meters long and 15 meters wide. If you run 2 laps along such a basketball court, how many meters will you run in total?
国际篮联规定的标准篮球场地的长是28米，宽是15米．如果沿这样的篮球场跑2圈，一共要跑多少米？
<gadget id="calculator">28 + 15</gadget>
<output>43</output>

<gadget id="calculator">43 * 2 * 2</gadget>
<output>172</output>

<result>172</result>