There is a rectangular fountain in the community garden, 70 meters long and 50 meters wide. Xiaogang ran around the fountain twice. How many meters did he run?
小区花园里有一个长方形的喷水池，长70米，宽50米，小刚绕喷水池跑了2圈，他跑了多少米？
<gadget id="calculator">70 + 50</gadget>
<output>120</output>

<gadget id="calculator">120 * 2</gadget>
<output>240</output>

<result>240</result>