Two cars, A and B, are traveling towards each other from cities A and B at the same time. They start at 8:00 am and meet each other at 1:00 pm. It is known that car A travels 52 kilometers per hour, and car B travels 78 kilometers per hour. How far did the two cars travel together?
甲乙两辆汽车分别从A、B两城同时相向而行，早上8时出发，下午1时两车相遇．已知甲车每小时行驶52千米，乙车每小时行驶78千米．这两辆汽车共行驶多远？
<gadget id="calculator">52 + 78</gadget>
<output>130</output>

<gadget id="calculator">13 - 8</gadget>
<output>5</output>

<gadget id="calculator">130 * 5</gadget>
<output>650</output>

<result>650</result>