a-a a-b a-c a-t aaa aab aac aam aar aat aau ab- aba abb abc abm abr abt abu ac- aca acb acc acm acr act acu ama amb amc amm amr amt amu ar- ara arb arc arm arr art aru at- ata atb atc atm atr att atu au- aua aub auc aum aur aut b-u baa bab bac bam bar bat bau bba bbb bbc bbm bbr bbt bbu bca bcb bcc bcm bcr bct bcu bma bmb bmc bmm bmr bmt bmu bra brb brm brr brt bru bta btb btc btm btr btt btu bua bub buc bum bur but buu c-- caa cab cac cam car cat cau cba cbb cbc cbm cbr cbt cbu cca ccb ccc ccm ccr cct ccu cma cmb cmc cmm cmr cmt cmu cra crb crc crm crr crt cru cta ctb ctc ctm ctr ctt ctu cua cub cuc cum cur cut cuu m-r maa mab mac mam mar mat mau mba mbb mbc mbm mbr mbt mbu mc- mca mcb mcc mcm mcr mct mcu mma mmb mmc mmm mmr mmt mmu mra mrb mrc mrm mrr mrt mru mta mtb mtc mtm mtr mtt mtu mua mub muc mum mur mut muu ra- raa rab rac ram rar rat rau rba rbb rbc rbm rbr rbt rbu rca rcb rcc rcm rcr rct rcu rma rmb rmc rmm rmr rmt rra rrb rrc rrm rrr rrt rru rta rtb rtc rtm rtr rtt rtu rua rub ruc rum rur rut ruu taa tab tac tam tar tat tau tba tbb tbc tbm tbr tbt tbu tca tcb tcc tcm tcr tct tcu tma tmb tmc tmm tmr tmt tmu tra trb trc trm trr trt tru tta ttb ttc ttm ttr ttt ttu tua tub tuc tum tur tut tuu ua- uaa uab uac uam uar uat uau uba ubb ubc ubr ubt ubu uca ucb ucc ucm ucr uct ucu um- uma umb umc umm umr umt umu ur- ura urb urc urm urr urt uru uta utb utc utm utr utt utu uua uuc uum uur uut uuu

aaaa aaab aaac aaam aaar aaba aabb aabc aabm aabt aaca aacb aacc aacm aacr aact aacu aama aamb aamc aamr aara aarc aarm aart aaru aata aatc aatt abaa abab abac abam abar abat abau abb- abba abbb abbr abbt abca abcb abcc abcr abct abma abmb abmc abmt abra abrc abta abtu abua abum abut ac-t acaa acab acac acar acat acba acca accc accm acct accu acma acmc acmu acr- acra acrc acrm acrr acta actc actt actu acu- acum acur acut amaa amac amam amar amat amb- amba ambr ambu amca amcc amm- amma ammu amra amrc amta amtc amua amum amur arab arac aram arar arat arau arba arc- arca arcm arct arma armc armm armt armu arr- arra arrc arrr arrt arru arta artc artr arua arub arum arut at-t ataa atab atac atar atat atca atcc atcr atm- atma atmu atra atrc atrm atru atta attr attu atua atub atuc atum atur auaa auca auct auma aur- aura aut- baaa baam baar baat baba babb babm babr babu bac- baca bacc bact bama bamb bamc bamm bamu bar- bara barb barc barm barr bart baru bata batc batt batu bau- baum baur bbau bbbb bbcm bbrc bcaa bcam bcar bcat bcbc bcca bccc bccm bcma bcra bcru bctc bcuc bmaa bmtc brab brac bram brat brau brca brcb brmc brrm brrr brtc bruc brum brut btaa btcc btrc btrt bttb buar buat buba bubb bubu buca bucc bucu bum- buma bumb bur- bura burb burm burr burt buru but- buta butt caaa caab caac caam caat caba cabu cac- caca cacc cacm cacr cama camb camc camm camt cara carb carc carm carr cart cat- cata catb catc catm catt catu cauc caum caut cbac cbar cbat cbbc cbca cbcc cbcm cbcr cbct cbcu cbrm cbrt cbta cbtc ccaa ccab ccac ccam ccar ccat ccba ccbc ccca cccb cccc cccm cccu ccma ccmb ccmc ccmm ccra ccrc ccrt cctb cctc cctt ccuc ccut cmaa cmac cmba cmbc cmcc cmmb cmmc cmra cmrr cmta cmtc cmtu crab crac cram crar crat crau crbc crbu crca crcc crcr crmb crrt crtc crtm crub crum crut ctab ctba ctca ctma ctrc ctrm ctta cuau cub- cuba cubb cuca cucc cucm cum- cuma cumt cura curb curr curt cut- cuta cutc cutt maaa maac maam maar maat maba mabu mac- maca macb macc macr mact macu mama mamc mamu mar- mara marc marm marr mart maru mata matc matr matt matu maua maum maur maut mbac mbam mbba mbca mbta mcaa mcac mcat mcba mcbc mcca mccc mcmc mcmt mcrc mctc mctu mmaa mmab mmac mmar mmcc mmcm mmct mmmc mmmm mmrc mr-c mrac mrbb mrbm mrca mrcb mrcc mrmc mrrc mrta mrtm mrtt mtaa mtab mtac mtbc mtcr mtrc mtrr mttr mtuc muac muar muc- mucc mucu muma mumm mumu mura murc murr murt muru muta mutt mutu muut raab raam raat raba rabb rabu rac- raca racc ract racu rama ramb ramm ramu rara rarb rata ratt ratu raua raub rauc raum raut rbbb rbbr rcac rcbc rccb rccc rctc rmtu rrat rrmc rrrr rrum rtca rtcc rtcm rtmc ruba rubb rubu ruca ruct ruma rumb rumm rumt rura rurc ruru ruta rutt rutu taa- taar taat taba tabb tabc tabu taca tacc tact tama tamc tamm tamu tara tarb tarc tarm tarr tart taru tata tatb tatr tatt tatu taua taub tauc taum taur taut tbar tbca tbcb tbcc tbrb tbta tcam tcca tccc tccu tctc tmaa tmac tmbc tmbr tmca tmcc tmcm tmtt traa trab trac tram trat trau trca trcc trma trmb trmu trra trtc trtr trub truc trut truu ttab ttbb ttma tttt tuam tuar tuat tuba tubb tubr tubu tuca tucc tuma tumb tumu tura turb turc turm turr turt turu tuta tutt tutu tuum uabc uaca uamc uarc uart uaru uata uatu uaua ubac