Two cars are traveling toward each other from two cities at the same time. The speed of car A is 63 kilometers per hour, and the speed of car B is 47 kilometers per hour. Car A is delayed for 2 hours due to accidents on the road, and meets car B at a distance less than 15 kilometers away from the middle of the whole journey. The highway is long.
两汽车从两城同时相向而行，甲车时速63千米，乙车时速47千米，甲汽车在路上因事耽搁2小时，在不及全程中央15千米处和乙车相遇，求两城间公路长．
<gadget id="calculator">63 * 2</gadget>
<output>126</output>

<gadget id="calculator">126 - 15 - 15</gadget>
<output>96</output>

<gadget id="calculator">63 - 47</gadget>
<output>16</output>

<gadget id="calculator">96 / 16</gadget>
<output>6</output>

<gadget id="calculator">6 * 47</gadget>
<output>282</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">63 * 4</gadget>
<output>252</output>

<gadget id="calculator">282 + 252</gadget>
<output>534</output>

<result>534</result>