Arrange flowers on the four sides of a rectangular flowerbed with a length of 8 meters and a width of 4 meters. Starting from one of the vertices, place a pot of rhododendron every 2 meters, and place a pot of peony between every two pots of rhododendrons. How many pots of flowers should be placed in total?
在一个长8米，宽4米的长方形花圃四边摆花．从其中一个顶点开始，每隔2米摆一盆杜鹃花，每两盆杜鹃花之间摆一盆牡丹花，一共要摆多少盆花？
<gadget id="calculator">8 + 4</gadget>
<output>12</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">12 * 1 * 2</gadget>
<output>24</output>

<result>24</result>