Write a detailed response to the following question: "What are the benefits of using a CRM system in a sales environment?" Your response should contain at least 5 sentences. The response must have 3 sections. Mark the beginning of each section with SECTION 1, SECTION 2, and SECTION 3. Include keywords: efficiency, customer data, sales performance, automation, and analytics. At the end of your response, please explicitly add a postscript starting with P.S.

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