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It was the PE teacher who taught us math in those days.
First, exchange two empty beer bottles for one beer, then 25 bottles of wine, and then use these 25 empty bottles for 12 bottles, leaving 1 empty bottles, so there are 13 bottles, and the remaining 1 bottles can be exchanged for 6 bottles, and the remaining 3 bottles can be exchanged. Finally, I changed two bottles, so I changed 25 bottles. Secondly, you can exchange three lids for 48+50=98 bottles for one bottle of wine. Here, you can exchange the remaining two bottle caps for 32 bottles, and the remaining two =34 bottles can be exchanged for 1 1 bottle with the remaining one, and so on, and then four bottles can be exchanged for 1 bottle, so that the bottle caps are exchanged for 32+65438+. Hope to help you, hope to adopt!