-ana aaaa aaac aaan aaap aaca aacc aacn aaco aacp aana aanp aaon aaoo aapa aapc aapo acaa acac acan acap acca accc acco accp acoa acon acop acpa ana- anaa anac anan anao anap anca ancc anco anna anno ano- anoa anon anp- anpa anpp aoca aono aopo apac apan apao apap apca apcc apcn apco apna apno apo- apoc apon apoo apop appa appc caaa caac caan caap cac- caca cacc caco cana canc cann cano canp capa capc capn capo capp ccaa ccac ccap ccca cccc cccp ccna ccnc ccnp ccoc ccpa ccpn ccpp cnaa cnac cnap cnco cncp cnna cnpa coan coca coco cocp con- cona conc conn cono coon coop copa copo copp cpaa cpac cpan cpap cpca cppa naaa naac naan naca nacc naco nacp nan- nana nann nano nanp naoc napa napo napp ncaa ncac ncap ncca nccc nccn nccp ncna ncnc ncoa ncoc ncpa ncpc nnnn noaa noac noap noco non- nona nonn nono noo- noon nooo noop npac npap npca npcc nppa nppc ocac ocan ocap occa occc occn ocna ocon ocpa ocpp onan onc- onca onco onna onno onon ooaa oona oooo opan opap opca opo- opon oppa oppo paan paap paca paco pan- pana panc pann pano paoc paon papa papp pcaa pcap pcca pccc pcoa pcpn pcpp pnac pnca pnon pnpo pnpp poan poca poco pona ponc pono ponp poon poop pop- popa popc popo popp ppac ppan ppap ppcc ppoa pppa pppn pppo pppp