-ana aaaa aaaf aaan aaap aafa aaff aana aanp aapa aapt aata aatf aatt afaa afan afap afat affa afft afpa afta aftn aftp ana- anaa anan anap anat anfa anna annt anp- anpa anpp ant- anta antt apan apap apat apfa apft apna appa appt apta aptn aptt at-t ataa atan atap atat atna atta attn attp faaa faan faap fafa faff fana fant fapa fapp fata fatf fatt ffff fftf fnta fpaa ftan naaa naan naat nafa naff nan- nana nann nanp nant napa napf napp napt nata natp natt nfaa nfat nfff nfpa nfta nnnn nntn npap npat nppa npta nptn ntap ntfp ntpa paan paap paat pafa paff pan- pana pann pant papa papp pata patt pfaa pfff pfft pnpp ppan ppap ppfa pppa pppn pppp ppta pptn pptt ptaf taa- taaf taan taat tafa taff taft tana tann tant tapa tapp tapt tata tatt tfnp tfpt tftp tpap tppa tppp tptp ttfa ttff ttfn tttt