After some time experimenting with Haskell (with mixed impressions) and quite positive feeling about Scala, I am really shocked by Clojure. I tried simple example from youtube tutorial, but it looks so awful, complex and compared to Haskell and Scala version it is just so verbose. I read that Clojure is a concise language. Is the tutorial bad or is this a fine code in Clojure? I really don't like the code at all...