Question 1152232
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This problem was just solved and the question was answered under this link


<A HREF=https://www.algebra.com/algebra/homework/Permutations/Permutations.faq.question.1152119.html>https://www.algebra.com/algebra/homework/Permutations/Permutations.faq.question.1152119.html</A>


https://www.algebra.com/algebra/homework/Permutations/Permutations.faq.question.1152119.html


So, you just have a template before your eyes.