The distance between every two poles is 45 meters. There are 32 poles on one road. So, how long is the road?
每两根电杆之间的距离是45米，一条路上，一共有32根电线杆，那么，这条路一共有多长？
<gadget id="calculator">32 - 1</gadget>
<output>31</output>

<gadget id="calculator">45 * 31</gadget>
<output>1_395</output>

<result>1_395</result>