anchor.diff:        binding them in order to your selected symbol."
       (let ((out-list nil))
         (dotimes (y 3) (push y out-list))
  -      (assert-equal out-list ___)))
  +      (assert-equal out-list '(2 1 0))))
   
   
   (defvar *x* "global")
  
positive.code:   (assert-equal (vowels-to-xs "Astronomy") "xstrxnxmy")
    (let* ((subjects '("Astronomy" "Biology" "Chemistry" "Linguistics"))
           (mc-result (mapcar #'vowels-to-xs subjects)))
      (assert-equal mc-result ____)))
  
  
  ;; ----
  
  (define-test test-mapcar-with-lambda
      (let ((mc-result (mapcar (lambda (x) (mod x 10)) '(21 152 403 14))))
        (assert-equal mc-result ____)))
  
negative.code:       (if (> one-prime biggest-in-list)
            (setf biggest-in-list one-prime))
        (incf how-many-in-list))
      (assert-equal 4 how-many-in-list)
      (assert-equal 999565999 biggest-in-list))
    (let ((sum 0))
      "write your own do-list here to calculate the sum of some-primes"
      "you may be interested in investigating the 'incf' function"
      (dolist (one-prime some-primes)
        (incf sum one-prime))
      (assert-equal 999607602 sum)))
  
  
  