On a circular runway, Xiao Ming and Xiao Hua started from both ends of a diameter at the same time and walked towards each other. When they met for the first time, Xiao Hua walked 80 meters. After meeting, the two continued to walk forward, and met Xiaohua again when Xiaoming walked 55 meters away. What is the circumference of this circular runway in meters?
在一个圆形跑道上，小明与小华分别从一条直径的两端同时出发，相向而行，第一次相遇时，小华走了80米．相遇后，两人继续向前行走，在小明走一圈差55米时，与小华再次相遇，这个圆形跑道的周长是多少米．
<gadget id="calculator">80 * 3</gadget>
<output>240</output>

<gadget id="calculator">240 - 55</gadget>
<output>185</output>

<gadget id="calculator">185 * 2</gadget>
<output>370</output>

<result>370</result>