From A to B, you can take a train, a car, or a ship. There are 5 trains, 8 cars, and 2 ships in a day. Question: How many different ways are there in taking these means of transportation from A to B in one day?
从甲地到乙地，可以乘火车，也可以乘汽车，还可以乘轮船．一天中火车有5班，汽车有8班，轮船有2班．问：一天中乘坐这些交通工具从甲地到乙地，共有多少种不同走法．
<gadget id="calculator">5 + 8 + 2</gadget>
<output>15</output>

<result>15</result>