a-a a-b a-c a-t aaa aab aac aam aao aar aat aau ab- aba abb abc abm abo abr abt abu ac- aca acb acc acm aco acr act acu ama amb amc amm amo amr amt amu aoa aob aoc aom aoo aor aot aou ar- ara arb arc arm aro arr art aru at- ata atb atc atm ato atr att atu au- aua aub auc aum auo aur aut b-u baa bab bac bam bao bar bat bau bba bbb bbc bbm bbo bbr bbt bbu bca bcb bcc bcm bco bcr bct bcu bma bmb bmc bmm bmo bmr bmt bmu boa bob boc bom boo bor bot bou bra brb brm bro brr brt bru bta btb btc btm bto btr btt btu bua bub buc bum buo bur but buu c-- caa cab cac cam cao car cat cau cba cbb cbc cbm cbo cbr cbt cbu cca ccb ccc ccm cco ccr cct ccu cma cmb cmc cmm cmo cmr cmt cmu co- coa cob coc com coo cor cot cou cra crb crc crm cro crr crt cru cta ctb ctc ctm cto ctr ctt ctu cua cub cuc cum cuo cur cut cuu m-o m-r maa mab mac mam mao mar mat mau mba mbb mbc mbm mbo mbr mbt mbu mc- mca mcb mcc mcm mco mcr mct mcu mma mmb mmc mmm mmo mmr mmt mmu moa mob moc mom moo mor mot mou mra mrb mrc mrm mro mrr mrt mru mta mtb mtc mtm mto mtr mtt mtu mua mub muc mum mur mut muu oaa oab oac oam oao oar oat oau ob- oba obb obc obm obo obr obt obu oc- oca ocb occ ocm oco ocr oct ocu om- oma omb omc omm omo omr omt omu oo- ooa oob ooc oom ooo oor oot or- ora orb orc orm oro orr ort oru ot- ota otb otc otm oto otr ott otu ou- oua ouc oum ouo our out ra- raa rab rac ram rao rar rat rau rba rbb rbc rbm rbo rbr rbt rbu rca rcb rcc rcm rco rcr rct rcu rma rmb rmc rmm rmo rmr rmt roa rob roc rom roo ror rot rou rra rrb rrc rrm rrr rrt rru rta rtb rtc rtm rto rtr rtt rtu rua rub ruc rum ruo rur rut ruu taa tab tac tam tao tar tat tau tba tbb tbc tbm tbo tbr tbt tbu tca tcb tcc tcm tco tcr tct tcu tma tmb tmc tmm tmo tmr tmt tmu to- toa tob toc tom too tor tot tou tra trb trc trm tro trr trt tru tta ttb ttc ttm tto ttr ttt ttu tua tub tuc tum tuo tur tut tuu ua- uaa uab uac uam uao uar uat uau uba ubb ubc ubo ubr ubt ubu uca ucb ucc ucm uco ucr uct ucu um- uma umb umc umm umo umr umt umu uoa uob uoc uom uoo uor uot ur- ura urb urc urm uro urr urt uru uta utb utc utm uto utr utt utu uua uuc uum uur uut uuu

aaaa aaab aaac aaam aaar aaba aabb aabc aabm aabt aaca aacb aacc aacm aaco aacr aact aacu aama aamb aamc aamo aamr aaoo aara aarc aarm aaro aart aaru aata aatc aatt abaa abab abac abam abar abat abau abb- abba abbb abbo abbr abbt abca abcb abcc abcr abct abma abmb abmc abmt aboa abob aboo abor abot abou abra abrc abro abta abtu abua abum abut ac-t acaa acab acac acar acat acba acca accc accm acco acct accu acma acmc acmu acoa acom acor acot acou acr- acra acrc acrm acro acrr acta actc acto actt actu acu- acum acuo acur acut amaa amac amam amar amat amb- amba ambo ambr ambu amca amcc amco amm- amma ammo ammu amob amoc amoo amor amot amou amra amrc amro amta amtc amto amua amum amur aoba aoca aoma aora aorb aort aotc aout arab arac aram arar arat arau arba arc- arca arcm arco arct arma armc armm armo armt armu aroa arob arom aroo aror arr- arra arrc arro arrr arrt arru arta artc arto artr arua arub arum arut at-t ataa atab atac atar atat atca atcc atco atcr atm- atma atmo atmu atob atoc atom ator atot atra atrc atrm atro atru atta atto attr attu atua atub atuc atum atur auaa auca auct auma aur- aura auro aut- auto baaa baam baar baat baba babb babm babo babr babu bac- baca bacc baco bact bama bamb bamc bamm bamu bar- bara barb barc barm baro barr bart baru bata batc bato batt batu bau- baum baur bbau bbbb bbcm bbrc bcaa bcam bcar bcat bcbc bcca bccc bccm bcma bcor bcra bcru bctc bcuc bmaa bmoc bmtc boab boac boar boat boba bobb bobo bobu boca bocm boco bocu boma bomb bomt bomu boob booc boom boor boot bor- bora borm boro borr bort boru bota botb boto bott boua boum bour bout brab brac bram brao brat brau brca brcb brmc broa brob broc brom broo bror brot brou brrm brrr brtc bruc brum brut btaa btcc btob btor btrc btrt bttb buar buat buba bubb bubo bubu buca bucc buco bucu bum- buma bumb bur- bura burb burm buro burr burt buru but- buta buto butt c-bo caaa caab caac caam caat caba cabo cabu cac- caca cacc cacm caco cacr cama camb camc camm camo camt caor cara carb carc carm caro carr cart cat- cata catb catc catm cato catt catu cauc caum cauo caut cbac cbar cbat cbbc cbca cbcc cbcm cbcr cbct cbcu cbot cbrm cbrt cbta cbtc ccaa ccab ccac ccam ccar ccat ccba ccbc ccca cccb cccc cccm cccu ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ccrt cctb cctc cctt ccuc ccut cmaa cmac cmba cmbc cmcc cmmb cmmc cmoc cmot cmra cmrr cmta cmtc cmtu