I'm curious to understand the fee structure of PancakeSwap V3. Can you elaborate on the different fee tiers and how they work? Are there any benefits or drawbacks to each tier? Additionally, is there a specific requirement or criteria that users need to meet in order to access the higher fee tiers? It would be great if you could provide a concise yet comprehensive overview of the fee tiers and how they impact users' trading experience on PancakeSwap V3.