GHCi, version 7.2.1: http://www.haskell.org/ghc/ :? for helpLoading package ghc-prim ... linking ... done.Loading package integer-gmp ... linking ... done.Loading package base ... linking ... done.Loading package ffi-1.0 ... linking ... done.Prelude> id 55Prelude> id id id id id 55Prelude> id id id id id id id id id id id id id id 55Prelude> id id id id id id id id id id id id id id id id id id id id id id id id id id 5<interactive>: out of memory