Plant trees on one side of a road (both ends are planted), every two trees are 16 meters apart, and a total of 187 trees are planted. How long is the road in meters?
在一条公路的一边种树(两端都种)，每两棵树之间相隔16米，共种187棵，公路长多少米？
<gadget id="calculator">187 - 1</gadget>
<output>186</output>

<gadget id="calculator">186 * 16</gadget>
<output>2_976</output>

<result>2_976</result>