A train travels 120 meters per hour from station A to station B. After 3 hours, it is still 220 kilometers away from station B. How far is it from station A to station B?
一列火车从甲站到乙站，每小时行120米，行了3小时后离乙站还有220千米，问甲站到乙站有多远？
<gadget id="calculator">120 * 3</gadget>
<output>360</output>

<gadget id="calculator">360 + 220</gadget>
<output>580</output>

<result>580</result>