a-a a-b a-c aaa aab aac aae aak aam aao ab- aba abb abc abe abk abm abo ac- aca acb acc ace ack acm aco aea aeb aec aee aek aem aeo aka akb akc ake akk akm ako ama amb amc ame amk amm amo aoa aob aoc aoe aok aom aoo baa bab bac bae bak bam bao bba bbb bbc bbe bbk bbm bbo bca bcb bcc bce bck bcm bco be- bea beb bec bee bek bem beo bka bkb bkc bke bkk bkm bko bma bmb bmc bme bmk bmm bmo boa bob boc boe bok bom boo c-- caa cab cac cae cak cam cao cba cbb cbc cbe cbk cbm cbo cca ccb ccc cce cck ccm cco ce- cea ceb cec cee cek cem ceo cka ckb ckc ckm cko cma cmb cmc cme cmk cmm cmo co- coa cob coc coe cok com coo eaa eab eac eae eak eam eao eba ebb ebc ebe ebk ebm ebo ec- eca ecb ecc ece eck ecm eco eea eeb eec eee eek eem eeo eka ekb ekc eke eko em- ema emb emc eme emk emm emo eo- eoa eob eoc eoe eok eom eoo ka- kaa kab kac kae kak kam kao kba kbb kbc kbe kbk kbm kbo kca kcb kcc kce kck kcm ke- kea keb kec kee kek kem keo kkb kkc kke kkk kkm kma kmb kmc kme kmk kmm kmo koa kob koc koe kok kom koo m-o maa mab mac mae mak mam mao mba mbb mbc mbe mbk mbm mbo mc- mca mcb mcc mce mck mcm mco mea meb mec mee mek mem meo mka mkb mkc mke mkk mkm mko mma mmb mmc mme mmk mmm mmo moa mob moc moe mok mom moo oaa oab oac oae oak oam oao ob- oba obb obc obe obk obm obo oc- oca ocb occ ock ocm oco oea oeb oec oee oem oeo oka okb okc oke okk oko om- oma omb omc ome omm omo oo- ooa oob ooc ook oom ooo

a-ak a-be a-ok aaaa aaab aaac aaae aaam aaba aabb aabc aabm aaca aacb aacc aace aack aacm aaco aaea aaec aaem aaka aake aama aamb aamc aame aamo aaoe aaoo abaa abab abac abae abak abam abb- abba abbb abbe abbo abca abcb abcc abec abee abma abmb abmc aboa abob abok aboo acaa acab acac acae acba acca accc acce accm acco ace- acea acec acek acem acke acma acmc acme acoa acoe acom aeac aecb aeka aeom akaa akae akam akao akca akee akka akko akok akom amaa amac amae amam amb- amba ambe ambo amca amcc amco amec amee amka amm- amma amme ammo amob amoc amok amoo aoba aoca aoce aoma baaa baak baam baba babb babe babm babo bac- baca bacc bace back baco baek bak- baka bake bako bama bamb bamc bame bamm bbbb bbcm bbeb bcaa bcam bcbc bcca bccc bccm bcec bcma beak beam beba bebb bebe bebo beca beck beeb beek beem beka beke beko bema beme beo- beok bmaa bmce bmoc boab boac boak boba bobb bobe bobo boca boce bock bocm boco boea boec boee boeo boka boke boko boma bomb bome boob booc booe book boom c-bo caaa caab caac caam caba cabe cabo cac- caca cacc cace cack cacm caco caec caem caka cake cama camb camc came camk camm camo cbac cbbc cbca cbcc cbce cbcm cbea cbec cbee cbka cbkm cbko cbme ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccm ccee cckm ccma ccmb ccmc ccmm ccob ccoc ccom ceac ceba cec- ceca cece cecm ceco ceeb ceec ceem ceke cema cemb ceme cemm ckac ckbc ckbe ckck ckcm ckco ckem ckmo ckoa ckob ckoc ckom ckoo cmaa cmac cmba cmbc cmcc cmea cmec cmmb cmmc cmoc coak coba cobb cobe cobo coca coce cock coco cok- coka coke coko com- coma comb comc come comm como coob cook coom eaba eaca eacc eaec eama eame eaom ebac ebam ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecam ecao ecbc ecbe ecca eccb eccc ecce eccm ecco ecem ecka ecko ecma eco- eeca eeea eeee eeka eeke eemo eeoc eka- ekab ekam ekco ekeb ekek ekka ekma ekoa emac emae emam emba embe embo emcc emco emek emma emme eoka kaaa kaab kaak kaam kaba kabb kabc kabe kabo kacb kacc kace kaco kaeo kaka kakc kake kakk kakm kako kam- kama kamb kamc kame kamm kamo kaoa kaoc kaok kbaa kbab kbac kbae kbak kbam kbba kbbb kbbc kbbe kbbk kbbm kbbo kbca kbcb kbce kbck kbco kbeb kbec kbee kbek kbeo kbkb kbkk kbko kbmb kbmc kbme kbmo kboa kbob kboc kboe kbok kboo kcaa kcab kcac kcam kcba kcbc kcbk kcca kccb kccc kcck kcea kceb kcec kcee kceo kckc kckk kckm kcko kcmb kcmc kcme kcmk kcmm kcmo kcob kcoe kcom kea- keak keam keba kebb kebc kebe keca keck keco keek keem keka kekb kekc keke keko kema kemb kemc keme kemm kemo keok keom kkaa kkac kkam kkba kkbb kkbe kkbo kkcb kkck kkcm kkco kkea kkkk kkma kkmc kkmk kkmo kkoa kkob kkoo kmac kmae kmak kmam kmbc kmca kmcb kmcc kmce kmcm kmco kmea kmem kmeo kmke kmkk kmko kmme kmmk kmmm kmmo kmoa kmob kmoc kmoe kmok kmom koab koac koae koak koba kobb kobc kobe kobk kobo koca kocb kock kocm koea koka kokb kokc koke kokk koko koma komb komc kome komo koob kooc kook kooo maaa maac maak maam maba mabe mabo mac- maca macb macc mace mack maco maee maem maeo maka make mako mama mamc mame mamo maoc mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mckk mcmc meak mebe mebo mec- meca mecc mece meck meco meek meem meka meke meko mema memc meme memo meoc meok mkak mmaa mmab mmac mmcc mmcm mmea mmmc mmmm moaa moab moac moam moba mobb mobe mobo