a-a a-b a-c aaa aab aac aam aao aar aau ab- aba abb abc abm abo abr abu ac- aca acb acc acm aco acr acu ama amb amc amm amo amr amu aoa aob aoc aom aoo aor aou ar- ara arb arc arm aro arr aru au- aua aub auc aum auo aur b-u baa bab bac bam bao bar bau bba bbb bbc bbm bbo bbr bbu bca bcb bcc bcm bco bcr bcu bma bmb bmc bmm bmo bmr bmu boa bob boc bom boo bor bou bra brb brm bro brr bru bua bub buc bum buo bur buu c-- caa cab cac cam cao car cau cba cbb cbc cbm cbo cbr cbu cca ccb ccc ccm cco ccr ccu cma cmb cmc cmm cmo cmr cmu co- coa cob coc com coo cor cou cra crb crc crm cro crr cru cua cub cuc cum cuo cur cuu m-o m-r maa mab mac mam mao mar mau mba mbb mbc mbm mbo mbr mbu mc- mca mcb mcc mcm mco mcr mcu mma mmb mmc mmm mmo mmr mmu moa mob moc mom moo mor mou mra mrb mrc mrm mro mrr mru mua mub muc mum mur muu oaa oab oac oam oao oar oau ob- oba obb obc obm obo obr obu oc- oca ocb occ ocm oco ocr ocu om- oma omb omc omm omo omr omu oo- ooa oob ooc oom ooo oor or- ora orb orc orm oro orr oru ou- oua ouc oum ouo our ra- raa rab rac ram rao rar rau rba rbb rbc rbm rbo rbr rbu rca rcb rcc rcm rco rcr rcu rma rmb rmc rmm rmo rmr roa rob roc rom roo ror rou rra rrb rrc rrm rrr rru rua rub ruc rum ruo rur ruu ua- uaa uab uac uam uao uar uau uba ubb ubc ubo ubr ubu uca ucb ucc ucm uco ucr ucu um- uma umb umc umm umo umr umu uoa uob uoc uom uoo uor ur- ura urb urc urm uro urr uru uua uuc uum uur uuu

aaaa aaab aaac aaam aaar aaba aabb aabc aabm aaca aacb aacc aacm aaco aacr aacu aama aamb aamc aamo aamr aaoo aara aarc aarm aaro aaru abaa abab abac abam abar abau abb- abba abbb abbo abbr abca abcb abcc abcr abma abmb abmc aboa abob aboo abor abou abra abrc abro abua abum acaa acab acac acar acba acca accc accm acco accu acma acmc acmu acoa acom acor acou acr- acra acrc acrm acro acrr acu- acum acuo acur amaa amac amam amar amb- amba ambo ambr ambu amca amcc amco amm- amma ammo ammu amob amoc amoo amor amou amra amrc amro amua amum amur aoba aoca aoma aora aorb arab arac aram arar arau arba arc- arca arcm arco arma armc armm armo armu aroa arob arom aroo aror arr- arra arrc arro arrr arru arua arub arum auaa auca auma aur- aura auro baaa baam baar baba babb babm babo babr babu bac- baca bacc baco bama bamb bamc bamm bamu bar- bara barb barc barm baro barr baru bau- baum baur bbau bbbb bbcm bbrc bcaa bcam bcar bcbc bcca bccc bccm bcma bcor bcra bcru bcuc bmaa bmoc boab boac boar boba bobb bobo bobu boca bocm boco bocu boma bomb bomu boob booc boom boor bor- bora borm boro borr boru boua boum bour brab brac bram brao brau brca brcb brmc broa brob broc brom broo bror brou brrm brrr bruc brum buar buba bubb bubo bubu buca bucc buco bucu bum- buma bumb bur- bura burb burm buro burr buru c-bo caaa caab caac caam caba cabo cabu cac- caca cacc cacm caco cacr cama camb camc camm camo caor cara carb carc carm caro carr cauc caum cauo cbac cbar cbbc cbca cbcc cbcm cbcr cbcu cbrm ccaa ccab ccac ccam ccar ccba ccbc ccca cccb cccc cccm cccu ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ccuc cmaa cmac cmba cmbc cmcc cmmb cmmc cmoc cmra cmrr coba cobb cobo cobu coca coco cocu com- coma comb comc comm como comr comu coob coom cor- cora corb corc corm coro corr coua coub cour crab crac cram crar crau crbc crbu crca crcc crcr crmb crmo crob croc crom croo cror crub crum cuau cub- cuba cubb cuca cucc cucm cum- cuma cura curb curo curr maaa maac maam maar maba mabo mabu mac- maca macb macc maco macr macu mama mamc mamo mamu maoc maor mar- mara marc marm maro marr maru maua maum maur mbac mbam mbba mbca mbou mcaa mcac mcba mcbc mcca mccc mcmc mcrc mmaa mmab mmac mmar mmcc mmcm mmmc mmmm mmor mmrc moaa moab moac moam moar moba mobb mobo moca moco moma momo momu mooa moob mooc moor mora morb moro moru mour mr-c mrac mrbb mrbm mrca mrcb mrcc mrmc mrrc muac muar mubo muc- mucc mucu muma mumm mumo mumu mura murc muro murr muru oaau oama oara obba obbo obor obra obro ocab ocac ocam ocbc occa occc ocma ocom ocra ocro ocrr ocum ocur omac omam omao omar ombo ombu omca omma omo- omoa omoo omor omra omro omuo ooaa ooba oocr ooma oooo oora orab orac oram orao orar orba orbb orbo orbu orca orco orma ormo oro- orom oror orra orro orub orum ouac oucc ouma our- oura ouro ouu- raab raam raba rabb rabo rabu rac- raca racc raco racu rama ramb ramm ramo ramu raob raoc raom rara rarb raro raua raub rauc raum rbbb rbbr rcac rcbc rcbo rccb rccc roab roam roar rob- roba robb robo robu roca rocc roco roma romb romm romo roob room roor rora rorc roro roru roua roub roum rrmc rrrr rrum ruba rubb rubu ruca ruma rumb rumm rumo rura rurc ruro ruru uabc uaca uamc uaoc uarc uaru uaua ubac ubar ubba ubbo uboc ubra ucam ucar