rectangular playground is 13 meters wide, and the length is 5 meters longer than the width. Xiao Fang ran 4 laps along the sideline of the playground. How many meters did he run?
一个长方形操场，宽13米，长比宽多5米，小方沿着操场边线跑了4圈，跑了多少米？
<gadget id="calculator">13 + 5</gadget>
<output>18</output>

<gadget id="calculator">18 + 13</gadget>
<output>31</output>

<gadget id="calculator">31 * 2 * 4</gadget>
<output>248</output>

<result>248</result>