-ana a-un aaaa aaab aaac aaad aaan aaap aaba aabb aabc aabd aabp aaca aacb aacc aacd aacn aacp aacu aada aadc aadu aana aand aanp aapa aapc aaup abaa abab abac abad aban abap abau abb- abba abbb abca abcb abcc abcd abcn abcp abda abdu abnu abpa abpc abpd abpn abpp abua abud abun acaa acab acac acad acan acap acba acca accc accd accp accu acda acdb acdc acdp acpa acpd acpu acu- acup adaa adab adac adad adan adap adba adbc adcc adda addc addd addn addu adna adnp adp- adua adub adun ana- anaa anab anac anad anan anap anau anba anbb anbu anca ancc and- anda anna annb anp- anpa anpp anpu anua anub anun anup apac apan apap apba apca apcb apcc apcd apcn apda apdd apdu apna appa appc appd appu apua apuc apud apup auaa auca aucp audc auna aupc baaa baad baan baba babb babu bac- baca bacc bacn bada badb badd badu bana banc band bann banp banu bapa bapc bapp bapu bau- baud bbad bbau bbbb bbdd bcaa bcap bcbc bcbp bcca bccc bcda bcnu bcpp bcuc bcup bdbc bddc bdna bdpc bnpp bpcp bpda buad buba bubb bubu buca bucc bucu buda budb budd budu buna bunb bund bunn bunu bupa bupc c-cd caaa caab caac caan caap caba cabu cac- caca cacc cada cadc cadd cadu cana canc cand cann canp capa capb capc capd capn capp capu cauc caup cbac cbbc cbca cbcc cbcn cbcp cbcu cbdb cbdc cbdn cbna cbnd cbpc cbpp ccaa ccab ccac ccad ccap ccba ccbc ccbn ccca cccb cccc cccp cccu ccdc ccdn ccdp ccna ccnb ccnc ccnp ccnu ccpa ccpn ccpp ccuc ccup cdaa cdac cdad cdba cdda cddb cdna cdnb cdnc cnaa cnac cnap cnbc cnbp cncp cnda cndd cndp cnna cnpa cpaa cpac cpad cpan cpap cpbc cpca cpcu cpnb cppa cppd cuan cuau cub- cuba cubb cuca cucc cucn cuda cuna cund cunp cupp d-na daab daad daan daap daau daba dabb dabp dabu daca dada dadu dana dand dann danu dapa dapp dapu daub daud daun dbcc dbcp dbpc dbpd dcbc dcca dccb dccc dccp dccu dcdb dcup dddd ddub dnaa dnab dnac dnad dnan dnap dpaa dpac dpbc dpcp dppa dppc duaa duab duad duan dub- duba dubb dubc dubu duca duda dudd dudu duna dunc dunn dupa n-up naaa naab naac naad naan naba nabc nabu naca nacc nacd nacp nada nadc nadp nadu nan- nana nanb nand nann nanp nanu napa napb napp napu nbaa nbad nbap nbbc nbca nbcc nbpa nbpp ncaa ncac ncap ncba ncbc ncca nccc nccn nccp nccu ncda ncdc ncdn ncdu ncna ncnc ncnd ncpa ncpc ncua ndaa ndau ndcc ndcp nddb ndna ndnp ndpd nndb nnnn npac npap npca npcc npda nppa nppc nppd nuan nuba nubc nuca nucu nuda nudc nudd nuna nunc nunn paan paap paba pabu paca pacd pacu pada padd padu pan- pana panc pand pann panu papa papb papp paua paud paun paup pbac pban pbcc pbpa pcaa pcad pcap pcba pcbc pcca pccc pcpb pcpn pcpp pcun pdac pdca pdcp pdpa pdpn pnac pnau pnca pnpp pnup ppac ppad ppan ppap ppcc ppcd pppa pppd pppn pppp puan pubu puca pudu puna punc pund punu pupa pupu puuc uabc uaca uaua ubac ubba ubpc ubud ucad ucan ucbc ucca uccp ucdc ucdd ucpa ucpb ucua udaa udad udau udbc udca udpd udun unaa unac unan unau unbd unca uncc uncp unda unna unpa unpc upac upca upda upnp uppa uppc uppp uppu upup uucp uuuu