It takes 9 hours to travel by car from Lili's home to the county seat, and the car travels 34 kilometers per hour. How many kilometers does it take for Lili to travel from home to the county seat?
从丽丽家到县城乘汽车要9小时，每小时汽车行驶34千米，丽丽从家去县城，往返一趟要行多少千米？
<gadget id="calculator">34 * 9 * 2</gadget>
<output>612</output>

<result>612</result>