Plant a sycamore tree every 30 meters on both sides of a 1200-meter-long road (trees must be planted at both ends), and plant a camphor tree between every two adjacent sycamore trees. How many trees are planted on both sides of this road?
在一条长1200米的马路两边每隔30米种一棵梧桐树(两端都要种树)，在每相邻的2棵梧桐树之间又补栽1棵香樟树．这条马路两边一共栽了多少棵树？
<gadget id="calculator">1_200 / 30</gadget>
<output>40</output>

<gadget id="calculator">40 + 1</gadget>
<output>41</output>

<gadget id="calculator">41 * 2</gadget>
<output>82</output>

<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<gadget id="calculator">82 + 80</gadget>
<output>162</output>

<result>162</result>