Station A leaves an express train to Station B at a speed of 65.5 kilometers per hour. After one hour, another slow train departs from Station A at a speed of 58.5 kilometers per hour. When the express train arrives at Station B, the slow train leaves Station B is still 104 kilometers away. Question: How many kilometers are there between A and B?
甲站向乙站开出一列快车，速度是每小时65.5千米，过了1小时后，又从甲站开出一列慢车，速度是每小时58.5千米，当快车到达乙站时，慢车离乙站还有104千米．问：甲乙两站相距多少千米？
<gadget id="calculator">104 * 65.5</gadget>
<output>6_812</output>

<gadget id="calculator">65.5 * 58.5</gadget>
<output>3_831.75</output>

<gadget id="calculator">6_812 - 3_831.75</gadget>
<output>2_980.25</output>

<gadget id="calculator">65.5 - 58.5</gadget>
<output>7</output>

<gadget id="calculator">2_980.25 / 7</gadget>
<output>425.75</output>

<result>425.75</result>