I need to understand the concept of entropy in thermodynamics. Can you explain it in simple terms and provide an example? Your response should contain at least 3 sentences. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *disorder*, *energy*, *thermodynamics* in the response. At the end of your response, please explicitly add a postscript starting with *P.S.*.
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