Xiao Ming and Xiao Liang set off from A and B at the same time and walk toward each other. They return immediately after arriving at B and A respectively. The place where they meet for the first time is 680 meters away from A, and the place where they meet for the second time is 340 meters away from B. A and B How many meters are the distance between the two places?
小明、小亮分别从甲乙两地同时出发相向而行，他们分别到达乙、甲两地后立即返回，第一次相遇处离甲地680米，第二次相遇处离乙地340米，甲乙两地相距多少米？
<gadget id="calculator">680 * 2</gadget>
<output>1_360</output>

<gadget id="calculator">1_360 + 680 + 340</gadget>
<output>2_380</output>

<result>2_380</result>