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  1. (set 'L (range 1 5))
  2. (println L)
  3.  
  4. # setcar
  5. (set L 11)
  6.  
  7. # setcdr
  8. (set (cdr L) 12)
  9.  
  10. (println L)
Success #stdin #stdout 0s 4384KB
stdin
Standard input is empty
stdout
(1 2 3 4 5)
(11 12 3 4 5)