Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/tests/nofib/imaginary/tak/Main.hs
-- code of unknown provenance (partain 95/01/25) tak :: Int -> Int -> Int -> Int tak x y z = if not(y < x) then z else tak (tak (x-1) y z) (tak (y-1) z x) (tak (z-1) x y) main = print (shows (tak 24 16 8) "\n")