rectangular flower bed is 5 meters long and 3 meters wide. Xiaojun walked around the flower bed twice, how many meters did he walk in total?
一个长方形花坛的长是5米，宽是3米．小军绕着这个花坛走了2圈，一共走了多少米？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">8 * 2 * 2</gadget>
<output>32</output>

<result>32</result>