Xiao Ming walks 2 times around a rectangular flower bed that is 4 meters long and 3 meters wide. How many meters did Xiao Ming walk?
小明绕一个长4米，宽3米的长方形花坛，走了2圈，小明走了多少米？
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">7 * 2 * 2</gadget>
<output>28</output>

<result>28</result>