Plant trees on both sides of a 500-meter-long road, plant one tree every 5 meters, and plant both ends. How many trees should be planted in total?
在长500米的一条路的两边栽树，每隔5米栽一棵，两端都栽，一共要栽多少棵？
<gadget id="calculator">500 / 5</gadget>
<output>100</output>

<gadget id="calculator">100 + 1</gadget>
<output>101</output>

<gadget id="calculator">101 * 2</gadget>
<output>202</output>

<result>202</result>