I should mention that this one is symmetric. If a=b then b=a.
mc ai, cy jcm mc ai, mpbm ex mpi dwixmecj: upimpiy 'mex jcaziy ej mpi
tejq mc xwvviy mpi xzejkx bjq byycux cv cwmybkicwx vcymwji, cy mc mbgi
bytx bkbejxm b xib cv mycwazix, bjq ar chhcxejk ijq mpit:
That not only makes it easier, especially for one so short, but makes some educational sense, priming for al