a-a a-b a-c a-t aaa aab aac aam aar aas aat aau ab- aba abb abc abm abr abs abt abu ac- aca acb acc acm acr acs act acu ama amb amc amm amr ams amt amu ar- ara arb arc arm arr ars art aru as- asa asb asc asm asr ass ast asu at- ata atb atc atm atr ats att atu au- aua aub auc aum aur aus aut b-u baa bab bac bam bar bas bat bau bba bbb bbc bbm bbr bbs bbt bbu bca bcb bcc bcm bcr bcs bct bcu bma bmb bmc bmm bmr bms bmt bmu bra brb brm brr brs brt bru bsa bsb bsc bsm bsr bss bst bsu bta btb btc btm btr bts btt btu bua bub buc bum bur bus but buu c-- caa cab cac cam car cas cat cau cba cbb cbc cbm cbr cbs cbt cbu cca ccb ccc ccm ccr ccs cct ccu cma cmb cmc cmm cmr cms cmt cmu cra crb crc crm crr crs crt cru csa csb csc csm csr css cst csu cta ctb ctc ctm ctr cts ctt ctu cua cub cuc cum cur cus cut cuu m-r maa mab mac mam mar mas mat mau mba mbb mbc mbm mbr mbs mbt mbu mc- mca mcb mcc mcm mcr mcs mct mcu mma mmb mmc mmm mmr mms mmt mmu mra mrb mrc mrm mrr mrs mrt mru msa msb msc msm msr mss mst msu mta mtb mtc mtm mtr mts mtt mtu mua mub muc mum mur mus mut muu ra- raa rab rac ram rar ras rat rau rba rbb rbc rbm rbr rbs rbt rbu rca rcb rcc rcm rcr rcs rct rcu rma rmb rmc rmm rmr rms rmt rra rrb rrc rrm rrr rrs rrt rru rsa rsb rsc rsm rsr rss rst rsu rta rtb rtc rtm rtr rts rtt rtu rua rub ruc rum rur rus rut ruu saa sab sac sam sar sas sat sau sba sbb sbc sbm sbr sbs sbt sbu sca scb scc scm scr scs sct scu sma smb smc smm smr sms smt smu sr- sra srb src srm srr srs srt ss- ssa ssb ssc ssm ssr sss sst ssu sta stb stc stm str sts stt stu sua sub suc sum sur sus sut suu taa tab tac tam tar tas tat tau tba tbb tbc tbm tbr tbs tbt tbu tca tcb tcc tcm tcr tcs tct tcu tma tmb tmc tmm tmr tms tmt tmu tra trb trc trm trr trs trt tru tsa tsb tsc tsm tsr tss tst tsu tta ttb ttc ttm ttr tts ttt ttu tua tub tuc tum tur tus tut tuu ua- uaa uab uac uam uar uas uat uau uba ubb ubc ubr ubs ubt ubu uca ucb ucc ucm ucr ucs uct ucu um- uma umb umc umm umr ums umt umu ur- ura urb urc urm urr urs urt uru usa usb usc usm usr uss ust usu uta utb utc utm utr uts utt utu uua uuc uum uur uus uut uuu

aaaa aaab aaac aaam aaar aaas aaba aabb aabc aabm aabt aaca aacb aacc aacm aacr aacs aact aacu aama aamb aamc aamr aams aara aarc aarm aars aart aaru aasa aasc aasm aass aast aasu aata aatc aatt aaus abaa abab abac abam abar abas abat abau abb- abba abbb abbr abbs abbt abca abcb abcc abcr abcs abct abma abmb abmc abms abmt abra abrc abrs abs- absa abss absu abta abts abtu abua abum abus abut ac-t acaa acab acac acar acas acat acba acca accc accm accs acct accu acma acmc acms acmu acr- acra acrc acrm acrr acrs acsa acsc acsm acss acst acta actc acts actt actu acu- acum acur acus acut amaa amac amam amar amas amat amb- amba ambr ambs ambu amca amcc amcs amm- amma ammu amra amrc amsa amsc amss amst amta amtc amts amua amum amur arab arac aram arar aras arat arau arba arbs arc- arca arcm arcs arct arma armc armm arms armt armu arr- arra arrc arrr arrs arrt arru ars- arsa arsc arst arsu arta artc artr arts arua arub arum arut asaa asab asac asam asar asas asat asau asba asbm asbu asc- asca ascb ascc ascr asct asma asmm asmr asms asmt asra asrc asrm asrs asru assa assc assr asss asst assu asta astb astc astm astr asts asub asum asur asus at-t ataa atab atac atar atas atat atbs atca atcc atcr atcs atm- atma atms atmu atra atrc atrm atru atsb atsc atst atta attr atts attu atua atub atuc atum atur atus auaa auca auct auma aur- aura ausa ausm aust ausu aut- auts baaa baam baar baas baat baba babb babm babr babs babu bac- baca bacc bacs bact bama bamb bamc bamm bams bamu bar- bara barb barc barm barr bars bart baru basa basc bass bast basu bata batc bats batt batu bau- baum baur bbas bbau bbbb bbbs bbcm bbrc bcaa bcam bcar bcas bcat bcbc bcbs bcca bccc bccm bccs bcma bcms bcra bcrs bcru bcsa bcsc bcsm bcss bctc bcts bcuc bmaa bmtc bmts bmus brab brac bram bras brat brau brca brcb brmc brrm brrr brrs brsb brsr brst brtc bruc brum brus brut bsaa bsac bsam bsas bsat bscs bsms bsmt bsra bsrm bssc bssm bsts btaa btcc btcs btrc btrt btss bttb btus buar buat buba bubb bubs bubu buca bucc bucs bucu bum- buma bumb bums bur- bura burb burm burr burs burt buru busa busc buss bust busu but- buta buts butt buus caaa caab caac caam caas caat caba cabs cabu cac- caca cacc cacm cacr cama camb camc camm cams camt cara carb carc carm carr cars cart casa casb casc casm casr cass cast casu cat- cata catb catc catm cats catt catu cauc caum caus caut cbac cbar