Two trains are running towards each other from places A and B at the same time. The passenger train travels 82 kilometers per hour, and the freight train travels 74 kilometers per hour. After traveling for 2 hours, the distance between the two trains is still 126 kilometers. How many kilometers are there between A and B?
两列火车同时从甲、乙两地相向而行，客车每小时行驶82千米，货车每小时行驶74千米，行驶了2小时后，两车还相距126千米．甲、乙两地相距多少千米？
<gadget id="calculator">82 + 74</gadget>
<output>156</output>

<gadget id="calculator">156 * 2</gadget>
<output>312</output>

<gadget id="calculator">312 + 126</gadget>
<output>438</output>

<result>438</result>