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Sep 10th, 2018
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  1. | al an b|
  2. al := 30.
  3. an := 'a'.
  4. b := (OrderedCollection new) add: 17; add: 'b'; add: 'c'; yourself.
  5. (OrderedCollection new) add: (al + b first); add: an; addAll: (b remove: b first; yourself); yourself. an OrderedCollection(47 'a' 'b' 'c')
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