A basketball court is 80 meters long and 50 meters wide. In physical education class, Xiao Ming ran along the sideline of the basketball court for 2 weeks. How many meters did Xiao Ming run?
一个篮球场长80米，宽50米，体育课上小明沿着篮球场的边线跑了2周，小明跑了多少米．
<gadget id="calculator">80 + 50</gadget>
<output>130</output>

<gadget id="calculator">130 * 2</gadget>
<output>260</output>

<gadget id="calculator">260 * 2</gadget>
<output>520</output>

<result>520</result>