(let ((quine '((lambda (q) `(,q ',q)) '(lambda (q) `(,q ',q))))) (equal? quine (eval quine)))
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Convert a number to a string, the content of which depends on the number's factors.
Given a DNA string, compute how many times each nucleotide occurs in the string.
Create an implementation of the Affine cipher, an ancient encryption algorithm from the Middle East.
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