The length of the football field is 100 meters and the width is 50 meters. Run 6 laps along the sideline of the football field, how many meters did you run in total?
足球场的长是100米，宽是50米．沿着足球场的边线跑6圈，一共跑了多少米？
<gadget id="calculator">100 + 50</gadget>
<output>150</output>

<gadget id="calculator">150 * 2</gadget>
<output>300</output>

<gadget id="calculator">300 * 6</gadget>
<output>1_800</output>

<result>1_800</result>