a-a a-b a-c aaa aab aac aah aam aao aar ab- aba abb abc abh abm abo abr ac- aca acb acc ach acm aco acr aha ahb ahc ahh ahm aho ahr ama amb amc amh amm amo amr aoa aob aoc aoh aom aoo aor ar- ara arb arc arh arm aro arr baa bab bac bah bam bao bar bba bbb bbc bbh bbm bbo bbr bca bcb bcc bch bcm bco bcr bha bhb bhc bhh bhm bho bhr bma bmb bmc bmh bmm bmo bmr boa bob boc boh bom boo bor bra brb brh brm bro brr c-- caa cab cac cah cam cao car cba cbb cbc cbh cbm cbo cbr cca ccb ccc cch ccm cco ccr ch- cha chb chc chh chm cho chr cma cmb cmc cmh cmm cmo cmr co- coa cob coc coh com coo cor cra crb crc crh crm cro crr haa hab hac hah ham hao har hba hbb hbc hbh hbm hbo hbr hca hcb hcc hch hcm hco hcr hha hhb hhc hhh hhm hho hhr hma hmb hmc hmh hmm hmo hmr hoa hob hoc hoh hom hoo hor hr- hra hrb hrc hrh hrm hro hrr m-o m-r maa mab mac mah mam mao mar mba mbb mbc mbh mbm mbo mbr mc- mca mcb mcc mch mcm mco mcr mha mhc mhh mhm mho mhr mma mmb mmc mmh mmm mmo mmr moa mob moc moh mom moo mor mra mrb mrc mrh mrm mro mrr oaa oab oac oah oam oao oar ob- oba obb obc obh obm obo obr oc- oca ocb occ och ocm oco ocr oha ohc ohh ohm oho ohr om- oma omb omc omh omm omo omr oo- ooa oob ooc ooh oom ooo oor or- ora orb orc orh orm oro orr ra- raa rab rac rah ram rao rar rba rbb rbc rbh rbm rbo rbr rca rcb rcc rch rcm rco rcr rh- rha rhb rhc rhh rhm rho rhr rma rmb rmc rmh rmm rmo rmr roa rob roc roh rom roo ror rra rrb rrc rrh rrm rrr

a-ha aaaa aaab aaac aaah aaam aaar aaba aabb aabc aabh aabm aaca aacb aacc aach aacm aaco aacr aaha aama aamb aamc aamo aamr aaoo aara aarc aarm aaro abaa abab abac abam abar abb- abba abbb abbo abbr abca abcb abcc abch abcr abha abhm abho abhr abma abmb abmc aboa abob aboh aboo abor abra abrc abro acaa acab acac acar acba acca accc acch accm acco acha achh acho achr acma acmc acmh acoa acoh acom acor acr- acra acrc acrm acro acrr ahab ahac ahah aham ahar ahha ahmc ahoa ahom ahor ahra ahrc ahrr amaa amac amah amam amar amb- amba ambo ambr amca amcc amco amm- amma ammo amob amoc amoo amor amra amrc amro aoah aoba aoca aoma aora aorb arab arac arah aram arar arba arbh arc- arca arch arcm arco arh- arma armc armh armm armo aroa arob arom aroo aror arr- arra arrc arrh arro arrr baaa baah baam baar baba babb babm babo babr bac- baca bacc bach baco baha baho bahr bama bamb bamc bamm baoh bar- bara barb barc barh barm baro barr bbbb bbch bbcm bbrc bcaa bcam bcar bcbc bcca bccc bccm bcma bcor bcra bhao bhar bhca bhcc bhor bhra bmaa bmoc boab boac boar boba bobb bobo boca boch bocm boco boha bohm boho bohr boma bomb boob booc booh boom boor bor- bora borh borm boro borr brab brac brah bram brao brca brcb brmc broa brob broc broh brom broo bror brrm brrr c-bo caaa caab caac caah caam caba cabo cac- caca cacc cach cacm caco cacr caha cama camb camc camh camm camo caor cara carb carc carm caro carr cbac cbar cbbc cbca cbcc cbcm cbcr cbha cbrh cbrm ccaa ccab ccac ccam ccar ccba ccbc ccca cccb cccc cccm ccha cchr ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc chaa chab chac chah cham chao char chca chch chcm chha chmb chmc chmo choc choh choo chor chra chrb chrc chro chrr cmaa cmac cmah cmba cmbc cmcc cmha cmhc cmmb cmmc cmoc cmra cmrr coba cobb cobh cobo coca coch coco coha coho com- coma comb comc comm como comr coob cooh coom cor- cora corb corc corm coro corr crab crac cram crar crbc crca crcc crcr crmb crmo crob croc croh crom croo cror haab haam haar haba habo haco haha haho hama hamc hamm hamo hamr haor hara harc harh harm haro harr hbar hboc hcbc hcca hccb hccc hcch hcmc hcmm hhaa hhhh hmhb hmmm hoac hoam hoar hoba hobo hoca hoch hocr hoha hohm hoho hom- homa homo homr hoom hoor hora horc horo horr hrac hrob hrrc maaa maac maam maar maba mabo mac- maca macb macc mach maco macr maha maho mahr mama mamc mamo maoc maor mar- mara marc marm maro marr mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mcmc mcrc mhac mhmm mhmr mhor mhra mmaa mmab mmac mmar mmcc mmcm mmhm mmmc mmmh mmmm mmor mmrc moaa moab moac moam moar moba mobb mobo moca moch moco moha mohm moho mohr moma momo mooa moob mooc moor mora morb moro mr-c mrac mrbb mrbm mrca mrcb mrcc mrmc mrrc oama oara obba obbo obor obra obrh obro ocab ocac ocam ocbc occa occc ocha ocma ocom ocra ocro ocrr oham ohba ohcc ohho ohob ohoh ohra omac omam omao omar ombo omca omha omma omo- omoa omoo omor omra omro ooaa ooba oocr ooha ooho ooma oooh oooo oora orab orac orah oram orao orar orba orbb orbo orca orch orco orma ormo oro- orom oror orra orro raab raam raba rabb rabo rac- raca racc rach raco raha rahm rahr rama ramb ramm ramo raob raoc raoh raom rara rarb raro rbbb rbbr rboh rcac rcbc rcbo rccb rccc rchb rchm