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  1. (defun fib(n)
  2. (if(or (eq n 0) (eq n 1))
  3. (return-from fib n))
  4. (return-from fib (+ (fib (- n 1)) (fib (- n 2)))))
  5. (print (fib 10))
Success #stdin #stdout 0.02s 10584KB
stdin
Standard input is empty
stdout
55