A total of 235 trees are planted on one side of the Yanhe Road, both end to end, and the distance between every two trees is 8 meters. How long is the Yanhe Road?
在沿河路的一侧共种了235棵树，首尾都种，每两颗树之间相距8米，沿河路有多长？
<gadget id="calculator">235 - 1</gadget>
<output>234</output>

<gadget id="calculator">234 * 8</gadget>
<output>1_872</output>

<result>1_872</result>