Give the step-by-step reasoning process and then the final answer. Suraya picked 12 apples more than Caleb, and Caleb picked 5 apples less than Kayla. If Kayla picked 20 apples, how many more apples did Suraya pick than Kayla?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Caleb picked 20 - 5 = 15 apples. Suraya picked 12 + 15 = 27 apples. Suraya picked 27 - 20 = 7 apples more than Kayla.
The final answer: 7.