Two trains A and B depart from AB at the same time at 8:00 p.m. on January 31, and meet on the way at 8:00 a.m. on February 1. It is known that car A travels 135 kilometers per hour, and car B travels 126 kilometers per hour. How many miles is the distance between A and B?
甲乙两列火车于1月31日晚上8时从AB两地同时相对开出，2月1日上午8时在途中相遇．已知甲车每小时行135千米，乙车每小时行126千米．AB两地相距多少千米．
<gadget id="calculator">135 + 126</gadget>
<output>261</output>

<gadget id="calculator">12 * 261</gadget>
<output>3_132</output>

<result>3_132</result>