Clojure evaluation order

evaluation.clj

(defn left []
  (println "Left")
  "Left")

(defn right []
  (println "Right")
  "Right")

(defn middle [a b]
  (println "Middle " a b)
  "Middle")

(defn outermost [a b c]
  (println "Outermost...")
  (println "Outermost " (a) b (c)))
    
(outermost left (middle :a :b) right)

without a REPL, I'd guess:

Middle :a :b
Outermost...
Left
Right
Outermost Left Middle Right