a-a a-b a-c aaa aab aac aad aam aao aar ab- aba abb abc abd abm abo abr ac- aca acb acc acd acm aco acr ad- ada adb adc add adm ado adr ama amb amc amd amm amo amr aoa aob aoc aod aom aoo aor ar- ara arb arc ard arm aro arr baa bab bac bad bam bao bar bba bbb bbc bbd bbm bbo bbr bca bcb bcc bcd bcm bco bcr bda bdb bdc bdd bdm bdo bdr bma bmb bmc bmd bmm bmo bmr boa bob boc bod bom boo bor bra brb brd brm bro brr c-- caa cab cac cad cam cao car cba cbb cbc cbd cbm cbo cbr cca ccb ccc ccd ccm cco ccr cda cdb cdc cdd cdm cdo cdr cma cmb cmc cmd cmm cmo cmr co- coa cob coc cod com coo cor cra crb crc crd crm cro crr daa dab dac dad dam dao dar dba dbb dbc dbd dbm dbo dbr dca dcb dcc dcd dcm dco dcr dda ddb ddc ddd ddm ddo ddr dma dmb dmc dmd dmm dmo dmr doa dob doc dod dom doo dor dra drb drc drd drm dro drr m-o m-r maa mab mac mad mam mao mar mba mbb mbc mbd mbm mbo mbr mc- mca mcb mcc mcd mcm mco mcr mda mdb mdc mdd mdm mdo mdr mma mmb mmc mmd mmm mmo mmr moa mob moc mod mom moo mor mra mrb mrc mrd mrm mro mrr oaa oab oac oad oam oao oar ob- oba obb obc obd obm obo obr oc- oca ocb occ ocd ocm oco ocr oda odb odc odd odm odo odr om- oma omb omc omd omm omo omr oo- ooa oob ooc ood oom ooo oor or- ora orb orc ord orm oro orr ra- raa rab rac rad ram rao rar rba rbb rbc rbd rbm rbo rbr rca rcb rcc rcd rcm rco rcr rda rdb rdc rdd rdm rdo rdr rma rmb rmc rmd rmm rmo rmr roa rob roc rod rom roo ror rra rrb rrc rrd rrm rrr

a-do aaaa aaab aaac aaad aaam aaar aaba aabb aabc aabd aabm aaca aacb aacc aacd aacm aaco aacr aada aadc aama aamb aamc aamd aamo aamr aaoo aara aarc aard aarm aaro abaa abab abac abad abam abar abb- abba abbb abbo abbr abca abcb abcc abcd abcr abda abdo abma abmb abmc aboa abob abod aboo abor abra abrc abro acaa acab acac acad acar acba acca accc accd accm acco acda acdb acdc acdm acma acmc acoa acod acom acor acr- acra acrc acrm acro acrr adaa adab adac adad adam adao adar adba adbc adcc adda addc addd addo addr adma admb admr adob adoc adod adoo ador adra adro amaa amac amad amam amar amb- amba ambo ambr amca amcc amco amda amdo amm- amma ammo amob amoc amod amoo amor amra amrc amro aoba aoca aoma aora aorb arab arac arad aram arar arba arc- arca arcm arco arda ardc ardm ardo arma armc armd armm armo aroa arob arod arom aroo aror arr- arra arrc arro arrr baaa baad baam baar baba babb babm babo babr bac- baca bacc baco bada badb badd bado badr bama bamb bamc bamm bar- bara barb barc bard barm baro barr bbad bbbb bbcm bbdd bbdo bbrc bcaa bcam bcar bcbc bcca bccc bccm bcda bcma bcor bcra bd-r bdbc bddc bdrm bmaa bmdb bmoc boab boac boad boar boba bobb bobo boca bocm boco boda bodb bodo boma bomb boob booc bood boom boor bor- bora bord borm boro borr brab brac brad bram brao brca brcb brda brdm brdo brmc broa brob broc brod brom broo bror brrm brrr c-bo c-cd caaa caab caac caam caba cabo cac- caca cacc cacm caco cacr cada cadc cadd cadm cado cadr cama camb camc camm camo caod caor cara carb carc card carm caro carr cbac cbar cbbc cbca cbcc cbcm cbcr cbdb cbdc cbdo cbrd cbrm ccaa ccab ccac ccad ccam ccar ccba ccbc ccca cccb cccc cccm ccdc ccdm ccdr ccma ccmb ccmc ccmd ccmm ccob ccoc ccod ccom ccra ccrc cd-r cdaa cdac cdad cdba cdda cddb cddr cdma cdom cmaa cmac cmba cmbc cmcc cmda cmdb cmdr cmmb cmmc cmoc cmra cmrr coad coba cobb cobo coca coco coda codd com- coma comb comc comd comm como comr coob cood coom cor- cora corb corc cord corm coro corr crab crac cram crar crbc crca crcc crcr crda crdc crmb crmo crob croc crod crom croo cror d-bo daab daad daam daar daba dabb dabo daca dada dado dama damb damm damo dara darb darc dard daro darr dbar dbcc dcbc dcca dccb dccc dcdb dcma dcom dcra dddd ddoc ddrc dmaa dmab dmac dmba dmcc dmcm dmdc dmrb dmrc doab doar doba dobb doca doco dod- doda dodd dodo doma domb domm domo doob dood doom door dora dorc dord dorm doro dorr draa drab drac drad dram drar drba drbc drca drda drob drod drom drra maaa maac maad maam maar maba mabo mac- maca macb macc macd maco macr mada madb madc madd mado mama mamc mamo maoc maor mar- mara marc mard marm maro marr mbac mbam mbba mbca mbda mbdb mcaa mcac mcad mcba mcbc mcca mccc mccd mcdc mcdd mcdo mcmc mcrc mcrd mdac mdca mdcc mddm mdma mdmc mdoc mdra mdrc mmaa mmab mmac mmar mmcc mmcd mmcm mmda mmdb mmdc mmmc mmmd mmmm mmod mmor mmrc moaa moab moac moam moar moba mobb mobo moca moco moda modd modo moma momo mooa moob mooc mood moor mora morb mord moro mr-c mrac mrad mrbb mrbm mrca mrcb mrcc mrda mrdd mrmc mrmd mrrc oadm oama oara obad obba obbo obor obra obro ocab ocac ocad ocam ocbc occa occc ocma ocom ocra ocro ocrr odac odam odbo odda oddd odma odmr odom odoo odor odra omac