and B start walking towards each other at the two ends of the path at A and B respectively, and meet for the first time at a place 80 meters away from B. Then the two continue to walk forward at the original speed, arrive at B and A respectively and then return immediately, and meet for the second time at a place 30 meters away from A. According to this way of walking, the third meeting between the two will be at a distance of how many meters from A.
甲，乙两人分别在小路两端A，B两处同时出发相向散步，第一次相遇在距B处80米的地方．然后两人继续按原速度向前行走，分别到达B，A处后再立即返回，第二次相遇在距A处30米的地方．照这样的走法，两人第三次相遇将在距A处多少米的地方．
<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">160 + 30</gadget>
<output>190</output>

<result>190</result>