A square flowerbed with a side length of 18 meters, build a path with a width of 2 meters around the flowerbed, plant a red maple every 2 meters on the outside of the path, and plant at the four vertices, how many red maple trees will be planted in total ?
一个正方形花圃，边长是18米，在花圃的四周修一宽2米的小路，在小路的外侧每隔2米栽一棵红枫，四个顶点处也要栽，一共要栽多少棵红枫？
<gadget id="calculator">18 + 2 + 2</gadget>
<output>22</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">22 * 2</gadget>
<output>44</output>

<result>44</result>