a-a a-b a-c aaa aab aac aag aah aam aao aar ab- aba abb abc abg abh abm abo abr ac- aca acb acc acg ach acm aco acr ag- aga agb agc agg agh agm ago agr aha ahb ahc ahg ahh ahm aho ahr ama amb amc amg amh amm amo amr aoa aob aoc aog aoh aom aoo aor ar- ara arb arc arg arh arm aro arr baa bab bac bag bah bam bao bar bba bbb bbc bbg bbh bbm bbo bbr bca bcb bcc bcg bch bcm bco bcr bga bgb bgc bgg bgh bgm bgo bgr bha bhb bhc bhg bhh bhm bho bhr bma bmb bmc bmg bmh bmm bmo bmr boa bob boc bog boh bom boo bor bra brb brg brh brm bro brr c-- caa cab cac cag cah cam cao car cba cbb cbc cbg cbh cbm cbo cbr cca ccb ccc ccg cch ccm cco ccr cga cgb cgc cgg cgh cgm cgo cgr ch- cha chb chc chg chh chm cho chr cma cmb cmc cmg cmh cmm cmo cmr co- coa cob coc cog coh com coo cor cra crb crc crg crh crm cro crr gaa gab gac gag gah gam gao gar gba gbc gbg gbh gbm gbo gbr gca gcb gcc gcg gch gcm gco gcr gga ggb ggc ggg ggh ggm ggo ggr gha ghb ghc ghg ghh gho ghr gma gmb gmc gmg gmh gmm gmo gmr goa gob goc gog goh gom goo gor gra grb grc grg grh grm gro grr haa hab hac hag hah ham hao har hba hbb hbc hbg hbh hbm hbo hbr hca hcb hcc hcg hch hcm hco hcr hga hgb hgc hgg hgh hgm hgo hgr hha hhb hhc hhg hhh hhm hho hhr hma hmb hmc hmg hmh hmm hmo hmr hoa hob hoc hog hoh hom hoo hor hr- hra hrb hrc hrg hrh hrm hro hrr m-o m-r maa mab mac mag mah mam mao mar mba mbb mbc mbg mbh mbm mbo mbr mc- mca mcb mcc mcg mch mcm mco mcr mga mgb mgc mgh mgm mgo mgr mha mhc mhg mhh mhm mho mhr mma mmb mmc mmg mmh mmm mmo mmr moa mob moc mog moh mom moo mor mra mrb mrc mrg mrh mrm mro mrr oaa oab oac oag oah oam oao oar ob- oba obb obc obg obh obm obo obr oc- oca ocb occ ocg och ocm oco ocr oga ogc ogg ogh ogo oha ohc ohg ohh ohm oho ohr om- oma omb omc omg omh omm omo omr oo- ooa oob ooc oog ooh oom ooo oor or- ora orb orc org orh orm oro orr ra- raa rab rac rag rah ram rao rar rba rbb rbc rbg rbh rbm rbo rbr rca rcb rcc rcg rch rcm rco rcr rga rgb rgc rgg rgh rgo rgr rh- rha rhb rhc rhg rhh rhm rho rhr rma rmb rmc rmg rmh rmm rmo rmr roa rob roc rog roh rom roo ror rra rrb rrc rrg rrh rrm rrr

a-ha aaaa aaab aaac aaah aaam aaar aaba aabb aabc aabh aabm aaca aacb aacc aach aacm aaco aacr aagh aaha aama aamb aamc aamo aamr aaoo aara aarc aarm aaro abaa abab abac abag 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 acag acar acba acca accc acch accm acco acga acgr acha achh acho achr acma acmc acmg acmh acoa acog acoh acom acor acr- acra acrc acrm acro acrr ag-o agac agag agam agao agar agba agbo agca agcc agco agga agha agma agmc agob agog agoo agra agro ahab ahac ahah aham ahar ahha ahmc ahoa ahog ahom ahor ahra ahrc ahrr amaa amac amag amah amam amar amb- amba ambo ambr amca amcc amco amga amm- amma ammo amob amoc amog amoo amor amra amrc amro aoah aoba aoca aogm aoma aomg aora aorb arab arac arag arah aram arar arba arbh arc- arca arch arcm arco arga argb argh argo arh- arma armc armh armm armo aroa arob arom aroo aror arr- arra arrc arrg arrh arro arrr baaa baah baam baar baba babb babm babo babr bac- baca bacc bach baco baga bagg bagh bago baha baho bahr bama bamb bamc bamm baoh bar- bara barb barc barg barh barm baro barr bbbb bbch bbcm bbga bbgm bbmg bbrc bbrg bcaa bcam bcar bcbc bcbg bcca bccc bccm bcma bcor bcra bgca bhag bhao bhar bhca bhcc bhog bhor bhra bmaa bmag bmoc boab boac boag boar boba bobb bobo boca boch bocm boco boga bogg bogh bogo boha bohm boho bohr boma bomb boob booc boog booh boom boor bor- bora borg borh borm boro borr brab brac brag brah bram brao brca brcb brmc broa brob broc brog broh brom broo bror brrm brrr c-bo caaa caab caac caah caam caba cabg cabo cac- caca cacc cach cacm caco cacr caga cagg cago cagr caha cama camb camc camh camm camo caor cara carb carc carm caro carr cbac cbar cbbc cbca cbcc cbcm cbcr cbga cbgb cbha cbrh cbrm ccaa ccab ccac ccag ccam ccar ccba ccbc ccca cccb cccc cccm ccga ccgc ccha cchr ccma ccmb ccmc ccmm ccob ccoc ccom ccra ccrc ccrg cgac cgcc cgcg cgmc cgro chaa chab chac chag chah cham chao char chca chch chcm chgb chha chmb chmc chmo choc choh choo chor chra chrb chrc chro chrr cmaa cmac cmah cmba cmbc cmcc cmha cmhc cmhg cmmb cmmc cmoc cmra cmrr coag coba cobb cobh cobo coca coch coco cogh cogo coha coho com- coma comb comc comm como comr coob cooh coom cor- cora corb corc corg corm coro corr crab crac crag cram crar crbc crca crcc crcr crmb crmo crob croc croh crom croo cror