An airplane flies an average of 803 kilometers per hour, and it takes 19 hours to fly from city A to city B. How many kilometers are there between cities A and B?
一架飞机平均每小时飞行803千米，从甲城到乙城共飞了19小时，甲乙两城有多少千米？
<gadget id="calculator">803 * 19</gadget>
<output>15_257</output>

<result>15_257</result>