a-a a-b a-c aaa aab aac aam aan aao aar ab- aba abb abc abm abn abo abr ac- aca acb acc acm acn aco acr ama amb amc amm amn amo amr an- ana anb anc anm ann ano anr aoa aob aoc aom aon aoo aor ar- ara arb arc arm arn aro arr baa bab bac bam ban bao bar bba bbb bbc bbm bbn bbo bbr bca bcb bcc bcm bcn bco bcr bma bmb bmc bmm bmn bmo bmr bna bnb bnc bnn bno bnr boa bob boc bom bon boo bor bra brb brm brn bro brr c-- caa cab cac cam can cao car cba cbb cbc cbm cbn cbo cbr cca ccb ccc ccm ccn cco ccr cma cmb cmc cmm cmn cmo cmr cn- cna cnb cnc cnm cnn cno cnr co- coa cob coc com con coo cor cra crb crc crm crn cro crr m-o m-r maa mab mac mam man mao mar mba mbb mbc mbm mbo mbr mc- mca mcb mcc mcm mcn mco mcr mma mmb mmc mmm mmn mmo mmr mna mnb mnc mnm mnn mno mnr moa mob moc mom mon moo mor mra mrb mrc mrm mrn mro mrr naa nab nac nam nan nao nar nba nbb nbc nbm nbn nbo nbr nca ncb ncc ncm ncn nco ncr nma nmb nmc nmm nmn nmo nmr nna nnb nnc nnm nnn nno no- noa nob noc nom non noo nor nra nrb nrc nrm nrn nro nrr oaa oab oac oam oan oao oar ob- oba obb obc obm obn obo obr oc- oca ocb occ ocm ocn oco ocr om- oma omb omc omm omn omo omr on- ona onb onc onn ono onr oo- ooa oob ooc oom oon ooo oor or- ora orb orc orm orn oro orr ra- raa rab rac ram ran rao rar rba rbb rbc rbm rbn rbo rbr rca rcb rcc rcm rcn rco rcr rma rmb rmc rmm rmn rmo rmr rna rnb rnc rnm rnn rno rnr roa rob roc rom ron roo ror rra rrb rrc rrm rrn rrr

-ana aaaa aaab aaac aaam aaan aaar aaba aabb aabc aabm aaca aacb aacc aacm aacn aaco aacr aama aamb aamc aamn aamo aamr aana aaon aaoo aara aarc aarm aaro abaa abab abac abam aban abar abb- abba abbb abbo abbr abca abcb abcc abcn abcr abma abmb abmc aboa abob abon aboo abor abra abrc abro acaa acab acac acan acar acba acca accc accm acco acma acmc acoa acom acon acor acr- acra acrc acrm acro acrr amaa amac amam aman amar amb- amba ambn ambo ambr amca amcc amco amm- amma ammo amno amob amoc amon amoo amor amra amrc amro ana- anaa anab anac anam anan anao anar anba anbb anbo anca ancc anco anma anna annb anno ano- anoa anom anon anor anrc aoba aoca aoma aonb aono aora aorb aorn arab arac aram aran arar arba arc- arca arcm arco arma armc armm armo arna arno aroa arob arom aron aroo aror arr- arra arrc arro arrr baaa baam baan baar baba babb babm babo babr bac- baca bacc bacn baco bama bamb bamc bamm bamn bana banc bann bano banr baon bar- bara barb barc barm barn baro barr bbbb bbcm bbrc bcaa bcam bcar bcbc bcca bccc bccm bcma bcor bcra bmaa bman bmoc bnoc bnor bnrr boab boac boan boar boba bobb bobo boca bocm boco boma bomb bona bonc bonn bono boob booc boom boon boor bor- bora borm born boro borr brab brac bram bran brao brca brcb brmc brna brno broa brob broc brom bron broo bror brrm brrr c-bo caaa caab caac caam caan caba cabo cac- caca cacc cacm caco cacr cama camb camc camm camo cana canc cann cano caor cara carb carc carm carn caro carr cbac cbar cbbc cbca cbcc cbcm cbcn cbcr cbna cbrm cbrn ccaa ccab ccac ccam ccar ccba ccbc ccbn ccca cccb cccc cccm ccma ccmb ccmc ccmm ccna ccnb ccnc ccnm ccnr ccob ccoc ccom ccra ccrc cmaa cmac cmba cmbc cmcc cmmb cmmc cmmn cmoc cmon cmra cmrn cmrr cnaa cnac cnam cnbc cnbm cnco cnma cnna cnrc cnrr coan coba cobb cobo coca coco com- coma comb comc comm como comr con- cona conc conn cono coob coom coon cor- cora corb corc corm corn coro corr crab crac cram cran crar crbc crca crcc crcr crmb crmn crmo crna crob croc crom cron croo cror maaa maac maam maan maar maba mabo mac- maca macb macc maco macr mama mamc mamo man- mana manc mann mano maoc maon maor mar- mara marc marm maro marr mbac mbam mbba mbca mbna mcaa mcac mcan mcba mcbc mcca mccc mcmc mcrc mmaa mmab mmac mman mmar mmcc mmcm mmmc mmmm mmor mmrc mnaa mnac mnam mnba mnbb mnra moaa moab moac moam moan moar moba mobb mobo moca moco moma momo mon- mona monc monn mono mooa moob mooc moon moor mora morb morn moro mr-c mrac mrbb mrbm mrca mrcb mrcc mrmc mrna mrnc mron mrrc naaa naab naac naam naan naar naba nabc nabo naca nacc nacm naco nama namb namm namo nan- nana nanb nann nano naoc naor nara narc narm narn naro narr nbaa nbar nbbc nbbo nbca nbcc nbco ncaa ncac ncar ncba ncbc ncca nccc nccn nccr ncmm ncna ncnc ncoa ncoc ncor ncra ncrc nman nmmc nmoc nmon nmra nmrc nnmc nnnn noaa noac noam noba nobc nobm nobo noco nom- noma nomo non- nona nonn nono noo- noob noon nooo noor nor- nora norb norc norm norn noro norr nrab nram nrca nrma nrna nroc nron nrrc oama oara oban obba obbo obon obor obra obro ocab ocac ocam ocan ocbc occa occc occn ocma ocna ocom ocon ocra ocro ocrr omac omam oman omao omar ombo omca omma omn- omo- omoa omon omoo omor omra omro onab onam onan