Xiaoyu and Xiaofan set off from two places 70 kilometers apart at the same time and walk toward each other. Xiaoyu walks 8 kilometers per hour, and Xiaofan walks 6 kilometers per hour. Xiaoyu and the robot start at the same time. Turn around and go back to Xiaoyu, and when you meet Xiaoyu, turn around and walk towards Xiaofan again, until the two meet, the robot is known to travel 20 kilometers per hour, how many kilometers has the robot traveled in total?
小羽、小凡两人同时从相距70千米的两地出发，相向而行，小羽每小时走8千米，小凡每小时走6千米，小羽带机器人同时出发，机器人碰到小凡就掉头返回小羽，碰到小羽是又掉头往小凡这边走，直到两人相遇为止，已知机器人每小时走20千米，问机器人一共走了多少千米的路程？
<gadget id="calculator">8 + 6</gadget>
<output>14</output>

<gadget id="calculator">70 / 14</gadget>
<output>5</output>

<gadget id="calculator">20 * 5</gadget>
<output>100</output>

<result>100</result>