a-a a-b a-c a-t aaa aab aac aas aat aau ab- aba abb abc abs abt abu ac- aca acb acc acs act acu as- asa asb asc ass ast asu at- ata atb atc ats att atu au- aua aub auc aus aut b-u baa bab bac bas bat bau bba bbb bbc bbs bbt bbu bca bcb bcc bcs bct bcu bsa bsb bsc bss bst bsu bta btb btc bts btt btu bua bub buc bus but buu c-- caa cab cac cas cat cau cba cbb cbc cbs cbt cbu cca ccb ccc ccs cct ccu csa csb csc css cst csu cta ctb ctc cts ctt ctu cua cub cuc cus cut cuu saa sab sac sas sat sau sba sbb sbc sbs sbt sbu sca scb scc scs sct scu ss- ssa ssb ssc sss sst ssu sta stb stc sts stt stu sua sub suc sus sut suu taa tab tac tas tat tau tba tbb tbc tbs tbt tbu tca tcb tcc tcs tct tcu tsa tsb tsc tss tst tsu tta ttb ttc tts ttt ttu tua tub tuc tus tut tuu ua- uaa uab uac uas uat uau uba ubb ubc ubs ubt ubu uca ucb ucc ucs uct ucu usa usb usc uss ust usu uta utb utc uts utt utu uua uuc uus uut uuu

aaaa aaab aaac aaas aaba aabb aabc aabt aaca aacb aacc aacs aact aacu aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac abas abat abau abb- abba abbb abbs abbt abca abcb abcc abcs abct abs- absa abss absu abta abts abtu abua abus abut ac-t acaa acab acac acas acat acba acca accc accs acct accu acsa acsc acss acst acta actc acts actt actu acu- acus acut asaa asab asac asas asat asau asba asbu asc- asca ascb ascc asct assa assc asss asst assu asta astb astc asts asub asus at-t ataa atab atac atas atat atbs atca atcc atcs atsb atsc atst atta atts attu atua atub atuc atus auaa auca auct ausa aust ausu aut- auts baaa baas baat baba babb babs babu bac- baca bacc bacs bact basa basc bass bast basu bata batc bats batt batu bau- bbas bbau bbbb bbbs bcaa bcas bcat bcbc bcbs bcca bccc bccs bcsa bcsc bcss bctc bcts bcuc bsaa bsac bsas bsat bscs bssc bsts btaa btcc btcs btss bttb btus buat buba bubb bubs bubu buca bucc bucs bucu busa busc buss bust busu but- buta buts butt buus caaa caab caac caas caat caba cabs cabu cac- caca cacc casa casb casc cass cast casu cat- cata catb catc cats catt catu cauc caus caut cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbcu cbsa cbsc cbta cbtc cbus ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccsa ccss ccst cctb cctc cctt ccuc ccus ccut csaa csab csac csas csat cscb cscc cscs cssa csta cstc csts csua csus ctab ctba ctbs ctca ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubs cuca cucc cusa cusb cuss cust cusu cut- cuta cutc cuts cutt sa-c saab saac saas saat saba sabb sabc sabs sabu saca sacc sacs sact sacu sasa sasc sass sast sata satb satc sats satt satu saua sauc saus saut sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbsa sbst sbtc sbus scaa scab scac scas scat scba sccc sccs scct scsa scsc scst scsu sctc scts scua scub scut ssaa ssab ssac ssas ssat ssau ssca sscc sscs sssa sssb sssc ssss ssta sstb sstc ssts stab stac stas stat stau stbc stbs stca stcc stcs stcu stss sttc stub stuc stus stut suas suat sub- suba subb subs suc- succ sucs sus- susa suss sust susu suta sutu suus taa- taas taat taba tabb tabc tabs tabu taca tacc tacs tact tasa tasb tasc tass tast tasu tata tatb tats tatt tatu taua taub tauc taus taut tbas tbbs tbca tbcb tbcc tbst tbta tcbs tcca tccc tccu tctc tcts tsaa tsat tsau tsbc tsca tscc tssa tsst tstc tsts ttab ttbb ttss tttt tuas tuat tuba tubb tubs tubu tuca tucc tusa tusc tuss tust tuta tuts tutt tutu uabc uaca uasa uata uatu uaua ubac ubba ucas ucat ucbc ucca ucsa ucsb ucsc ucst ucsu ucua ucut us-a usaa usac usas usat usba usbc usbs usca uscc uscs ussa ussb ussc usss usst ussu usta ustb ustc usts usua usus utac utas utau utsa utsc uttu uuta uuuu

-aaa- aaaas aaasa aaass aaata aabaa aabba aacbc aacsa aacsb aacss aacus abaab ababa ababs ababu abaca abacs abasa abass abbac abbas abbat abcas abccc absut abtaa abust abuta abuts abutt acaca acacb acass acast acats acaua accas accts accub accus actas actsa actua actus acuba acusa acuta asaba asabc asasa asats asaut asbca ascus assab assac assas assat assts astab astas astat asubs atabu atasu atats atbat attas attus atusa auass aubas aucas aussa austa b-cas baata babas babau babbs babus babut bacab bacas bacca bacta bacu basab basca bassa bassu basta basts bastu basut batab batac batas batat batau batsa batsu batta batts battu batus bauta bbuss bcbst bccat bsaba btstu buats bubas bubba bucca bucsa bucsu busaa busca bussa bussu busta busts busua busut busuu butat butts butua butut c-a-c c-bus ca-ca caaba cabas cabus cabut cacas cacau cacu cacus casas casca casta casts casus cata- catss catta catts catua catus cauac cauas cauca causa ccass ccccc csaba cstcc cuaba cubas cubub cusat cutcu cutsa cutts s-bus saaba saabs saasa saasu sabac sabas sabat sabau sabca sabsa sabus sabut sacas sacc- sacca sacsa sacta sasca sassa sat-b satat satau satsu satta sattu satus sauba sauca sauts sbata scabs scat- scata scats scatt scaut sccbc scsaa scuba scusa scut- scuta scuts scutt ssats sscac sssss staab staat stabs stacc stat- stata stats statu staub staus staut stubs stuss suasa suatu subba subbu subss subst sucst sucua susac susat susta