The runway is 200 meters per lap. Xiaohong insists on exercising and runs twice a day. How many meters does she run in a week?
跑道每圈200米，小红坚持锻炼身体，每天跑两圈，她一个星期跑多少米？
<gadget id="calculator">200 * 2 * 7</gadget>
<output>2_800</output>

<result>2_800</result>