A store sells beer. In order to recycle empty bottles, it is stipulated that every 3 empty bottles can be exchanged for a bottle of beer. Uncle Wang bought 24 bottles of beer, how many bottles of beer can he drink at most?
某商店出售啤酒，为了回收空瓶，规定每3个空瓶可以换一瓶啤酒．王大叔买了24瓶啤酒，他最多可喝多少瓶啤酒？
<gadget id="calculator">24 + 8 + 2 + 1 + 1</gadget>
<output>36</output>

<result>36</result>