aaaa aaab aaac aaap aaas aaba aabb aabc aabp aabt aaca aacb aacc aacp aacs aact aacu aapa aapc aaps aapt aasa aasc aass aast aasu aata aatc aatt aaup aaus abaa abab abac abap abas abat abau abb- abba abbb abbs abbt abca abcb abcc abcp abcs abct abpa abpc abpp abps abs- absa absp abss absu abta abts abtu abua abus abut ac-t acaa acab acac acap acas acat acba acca accc accp accs acct accu acpa acps acpt acpu acsa acsc acss acst acta actc acts actt actu acu- acup acus acut apac apap apas apat apba apbs apca apcb apcc apcs appa appc apps appt appu apsa apss apsu apta aptc apts aptt apua apuc apup apus asaa asab asac asap asas asat asau asba asbu asc- asca ascb ascc ascp asct aspa aspc asps aspt assa assc assp asss asst assu asta astb astc astp asts asub asus at-t ataa atab atac atap atas atat atbs atca atcc atcs atsb atsc atst atta attp atts attu atua atub atuc atus auaa auca aucp auct aupc aups ausa aust ausu aut- auts baaa baas baat baba babb babs babu bac- baca bacc bacs bact bapa bapc bapp baps bapt bapu basa basc bass bast basu bata batc bats batt batu bau- bbas bbau bbbb bbbs bcaa bcap bcas bcat bcbc bcbp bcbs bcca bccc bccs bcpp bcps bcsa bcsc bcss bctc bcts bcuc bcup bpcp bpsa bpsu bsaa bsac bsap bsas bsat bscp bscs bspp bssc bsts bsup btaa btbp btcc btcs btps btss bttb btus buat buba bubb bubs bubu buca bucc bucs bucu bupa bupc bups busa busc buss bust busu but- buta buts butt buus caaa caab caac caap caas caat caba cabs cabu cac- caca cacc capa capb capc capp caps capt capu casa casb casc casp cass cast casu cat- cata catb catc cats catt catu cauc caup caus caut cbac cbat cbbc cbbs cbca cbcc cbcp cbcs cbct cbcu cbpc cbpp cbsa cbsc cbta cbtc cbus ccaa ccab ccac ccap ccas ccat ccba ccbc ccca cccb cccc cccp cccs cccu ccpa ccpp ccps ccsa ccsp ccss ccst cctb cctc cctt ccuc ccup ccus ccut cpaa cpac cpap cpas cpbc cpca cpcs cpcu cppa cpps cpsa cpsc cpsu cptp cpts cpus csaa csab csac csas csat cscb cscc cscs cspa cspb cspc csps cspt cssa csta cstc csts csua csup csus ctab ctba ctbs ctca ctcp ctpp ctps ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubs cuca cucc cupp cups cusa cusb cusp cuss cust cusu cut- cuta cutc cuts cutt paap paas paat paba pabt pabu paca pacs pact pacu papa papb papp paps pasa pasc pasp pass past pata pats patt patu paua paup paus paut pbac pbcc pbpa pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcpb pcpp pcps pcsa pcts ppac ppap ppcc ppcs pppa pppp ppps ppss ppta ppts pptt psac psap psas psat psbt psca pscu pspp psps pssa pssc psst psts pstu ptab ptas ptca ptcc ptsa pttc puas pubs pubu puca pupa pups pupu pusa puss pust put- puta puts putt putu puuc sa-c saab saac saap saas saat saba sabb sabc sabs sabu saca sacc sacs sact sacu sapa sapp saps sasa sasc sass sast sata satb satc sats satt satu saua sauc saup saus saut sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbsa sbsp sbst sbtc sbus scaa scab scac scap scas scat scba sccc sccp sccs scct scpa scpb scps scpt scsa scsc scst scsu sctc scts scua scub scup scut sp-a spac spap spas spat spau spca spcc spcs spps spsa spsp spss spst spta sptb sptc spts spus sput ssaa ssab ssac ssap ssas ssat ssau ssca sscc sscp sscs sspa sspc ssps sspt sssa sssb sssc ssss ssta sstb sstc sstp ssts stab stac stap stas stat stau stbc stbs stca stcc stcp stcs stcu stpp stps stss sttc stub stuc stup stus stut suas suat sub- suba subb subs suc- succ sucs sup- supa supp sups supt sus- susa susp suss sust susu suta sutu suus taa- taas taat taba tabb tabc tabs tabu taca tacc tacs tact tapa tapp taps tapt tapu tasa tasb tasc tasp tass tast tasu tata tatb tats tatt tatu taua taub tauc taus taut tbas tbbs tbca tbcb tbcc tbsp tbst tbta tbtp tcap tcbs tcca tccc tccu tcpa tctc tcts tpac tpap tpau tpcp tpcs tppa tppp tpsa tpsc tptp tput tsaa tsat tsau tsbc tsca tscc tscp tsps tspt tssa tsst tstc tsts tsup ttab ttbb ttcp ttss tttt tuas tuat tuba tubb tubs tubu tuca tucc tupa tups tupu tusa tusc tuss tust tuta tuts tutt tutu uabc uaca uasa uasp uata uatu uaua ubac ubba ubpc ucas ucat ucbc ucca uccp ucpa ucpb ucsa ucsb ucsc ucst ucsu ucua ucut upac upas upat upca upcs uppa uppc uppp uppu upsa upsc upup us-a usaa usac usap usas usat usba usbc usbs usca uscc uscs uspa uspc uspp usps ussa ussb ussc usss usst ussu usta ustb ustc ustp usts usua usus utac utas utau utpa utsa utsc uttu uucp uuta uuuu