train travels 360 kilometers in 3 hours. It takes 12 hours for this train to travel from city A to city B. How long is the total length of the railway from city A to city B?
一列火车3小时行360千米，这列火车从A城到B城需要12小时，A城到B城的铁路全长多少千米？
<gadget id="calculator">360 / 3</gadget>
<output>120</output>

<gadget id="calculator">120 * 12</gadget>
<output>1_440</output>

<result>1_440</result>