a-a a-b a-c aaa aab aac aad aam aao aar aax ab- aba abb abc abd abm abo abr abx ac- aca acb acc acd acm aco acr acx ad- ada adb adc add adm ado adr adx ama amb amc amd amm amo amr amx aoa aob aoc aod aom aoo aor aox ar- ara arb arc ard arm aro arr arx ax- axa axm axo axr axx baa bab bac bad bam bao bar bax bba bbb bbc bbd bbm bbo bbr bbx bca bcb bcc bcd bcm bco bcr bcx bda bdb bdc bdd bdm bdo bdr bdx bma bmb bmc bmd bmm bmo bmr bmx boa bob boc bod bom boo bor box bra brb brd brm bro brr brx bxb bxd bxm bxo bxx c-- caa cab cac cad cam cao car cax cba cbb cbc cbd cbm cbo cbr cbx cca ccb ccc ccd ccm cco ccr ccx cda cdb cdc cdd cdm cdo cdr cdx cma cmb cmc cmd cmm cmo cmr cmx co- coa cob coc cod com coo cor cox cra crb crc crd crm cro crr crx cxc cxo cxr cxx daa dab dac dad dam dao dar dax dba dbb dbc dbd dbm dbo dbr dbx dca dcb dcc dcd dcm dco dcr dcx dda ddb ddc ddd ddm ddo ddr ddx dma dmb dmc dmd dmm dmo dmr dmx doa dob doc dod dom doo dor dox dra drb drc drd drm dro drr drx dxc dxd dxo dxr dxx m-o m-r maa mab mac mad mam mao mar max mba mbb mbc mbd mbm mbo mbr mbx mc- mca mcb mcc mcd mcm mco mcr mcx mda mdb mdc mdd mdm mdo mdr mdx mma mmb mmc mmd mmm mmo mmr mmx moa mob moc mod mom moo mor mox mra mrb mrc mrd mrm mro mrr mrx mxa mxc mxd mxr oaa oab oac oad oam oao oar oax ob- oba obb obc obd obm obo obr obx oc- oca ocb occ ocd ocm oco ocr ocx oda odb odc odd odm odo odr om- oma omb omc omd omm omo omr omx oo- ooa oob ooc ood oom ooo oor oox or- ora orb orc ord orm oro orr orx ox- oxa oxb oxc oxo oxx ra- raa rab rac rad ram rao rar rax rba rbb rbc rbd rbm rbo rbr rbx rca rcb rcc rcd rcm rco rcr rcx rda rdb rdc rdd rdm rdo rdr rdx rma rmb rmc rmd rmm rmo rmr rmx roa rob roc rod rom roo ror rox rra rrb rrc rrd rrm rrr rxr xaa xac xad xam xar xbc xbr xbx xcb xcd xcr xcx xda xdb xdc xdm xdr xma xmc xmd xmm xmo xmr xmx xoa xoc xod xom xoo xor xox xrc xrd xrx xxo xxx

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 abax abb- abba abbb abbo abbr abca abcb abcc abcd abcr abda abdo abma abmb abmc aboa abob abod aboo abor abox 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 admx adob adoc adod adoo ador adox adra adro amaa amac amad amam amar amax amb- amba ambo ambr ambx 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 arax 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 axar axo- axoa axxo ba-x 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 barx bbad bbbb bbcm bbdd bbdo bbox bbrc bcaa bcam bcar bcbc bcca bccc bccm bcda bcma bcor bcra bd-r bdbc bddc bdmx bdrm bmaa bmdb bmoc boab boac boad boar boba bobb bobo boca bocm boco boda bodb bodo boma bomb boob booc bood boom boor boox bor- bora bord borm boro borr boxa brab brac brad bram brao brax brca brcb brda brdm brdo brmc broa brob broc brod brom broo bror brox 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 camx caod caor cara carb carc card carm caro carr carx caxa cbac cbar cbax cbbc cbca cbcc cbcm cbcr cbdb cbdc cbdo cbox cbrd cbrm cbxa 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 cdax cdba cdda cddb cddr cdma cdom cmaa cmac cmax cmba cmbc cmbx cmcc cmda cmdb cmdr cmmb cmmc cmoc cmra cmrr coad coax 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 coxa crab crac cram crar crax crbc crca crcc crcr crda crdc crmb crmo crob croc crod crom croo cror cxro cxxx 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 dcxx dddd ddoc ddrc dmaa dmab dmac dmax dmba dmcc dmcm dmdc dmrb dmrc do-x doab doar doba dobb doca doco dod- doda dodd dodo doma domb domm domo doob dood doom door dora dorc dord dorm doro dorr doxa draa drab drac drad dram drar drax drba drbc