Uncle Li's family has a parallelogram-shaped vegetable field, 20 meters high, and the base is 2 meters higher than the height. If 30 vegetables are planted per square meter, how many can be planted in total?
李大伯家有一块平行四边形菜地，高20米，底比高多2米．如果每平方米种菜30棵，那么一共可以种多少棵？
<gadget id="calculator">20 + 2</gadget>
<output>22</output>

<gadget id="calculator">20 * 22 * 30</gadget>
<output>13_200</output>

<result>13_200</result>