[Haskell] We write a pure program in Haskell

Any post is ignored if:
* code isn't fully conforming Haskell 2010
* contains a definition of main outside of >>999
* FFI is used or modules imported that are not provided with a standard Haskell Platform install

fully conforming Haskell 2010

Can't wait for 2011-2012 where Haskell takes over the software industry and functional programming established as new paradigm.