In order to beautify the campus, the school planted a landscape tree every 5 meters on both sides of the aisle. The school aisle is about 2 kilometers, so how many trees are planted in total?
为美化校园，学校在走道两旁每隔5米栽一棵风景树，学校走道大约2千米，那么一共栽多少棵
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 / 5</gadget>
<output>400</output>

<gadget id="calculator">400 + 1</gadget>
<output>401</output>

<gadget id="calculator">401 * 2</gadget>
<output>802</output>

<result>802</result>