Xiao Ming, Xiao Qi, and Xiao Duo jogged along the circular track, and they started from the same place at the same time. Xiao Ming and Xiao Qi run clockwise along the runway, Xiao Duo runs counterclockwise along the runway, Xiao Ming runs 150 meters per minute, and Xiao Qi runs 110 meters per minute. If Xiaoduo meets Xiaoming first 10 minutes after departure, and meets Xiaoqi 2 minutes later, find the circumference of the circular runway.
小明、小奇、小朵三人沿环形跑道慢跑，他们从同一地点同时出发．小明、小奇两人沿跑道顺时针方向跑，小朵沿跑道逆时针方向跑，小明每分钟跑150米，小奇每分钟跑110米．若小朵出发10分钟后先遇上小明，再过2分钟遇上小奇，求环形跑道的周长．
<gadget id="calculator">150 - 110</gadget>
<output>40</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">40 * 5</gadget>
<output>200</output>

<gadget id="calculator">200 - 110</gadget>
<output>90</output>

<gadget id="calculator">150 + 90</gadget>
<output>240</output>

<gadget id="calculator">240 * 10</gadget>
<output>2_400</output>

<result>2_400</result>