a-a a-b a-c aaa aab aac aad aam aao aas ab- aba abb abc abd abm abo abs ac- aca acb acc acd acm aco acs ad- ada adb adc add adm ado ads ama amb amc amd amm amo ams aoa aob aoc aod aom aoo aos as- asa asb asc asd asm aso ass baa bab bac bad bam bao bas bba bbb bbc bbd bbm bbo bbs bca bcb bcc bcd bcm bco bcs bda bdb bdc bdd bdm bdo bds bma bmb bmc bmd bmm bmo bms boa bob boc bod bom boo bos bsa bsb bsc bsd bsm bso bss c-- caa cab cac cad cam cao cas cba cbb cbc cbd cbm cbo cbs cca ccb ccc ccd ccm cco ccs cda cdb cdc cdd cdm cdo cds cma cmb cmc cmd cmm cmo cms co- coa cob coc cod com coo cos csa csb csc csd csm cso css daa dab dac dad dam dao das dba dbb dbc dbd dbm dbo dbs dca dcb dcc dcd dcm dco dcs dda ddb ddc ddd ddm ddo dds dma dmb dmc dmd dmm dmo dms doa dob doc dod dom doo dos dsa dsb dsc dsd dsm dso dss m-o maa mab mac mad mam mao mas mba mbb mbc mbd mbm mbo mbs mc- mca mcb mcc mcd mcm mco mcs mda mdb mdc mdd mdm mdo mds mma mmb mmc mmd mmm mmo mms moa mob moc mod mom moo mos msa msb msc msd msm mso mss oaa oab oac oad oam oao oas ob- oba obb obc obd obm obo obs oc- oca ocb occ ocd ocm oco ocs oda odb odc odd odm odo ods om- oma omb omc omd omm omo oms oo- ooa oob ooc ood oom ooo oos os- osa osb osc osd osm oso oss saa sab sac sad sam sao sas sba sbb sbc sbd sbm sbo sbs sca scb scc scd scm sco scs sda sdb sdc sdd sdm sdo sds sma smb smc smd smm smo sms soa sob soc sod som soo sos ss- ssa ssb ssc ssd ssm sso sss

a-do aaaa aaab aaac aaad aaam aaas aaba aabb aabc aabd aabm aaca aacb aacc aacd aacm aaco aacs aada aadc aads aama aamb aamc aamd aamo aams aaoo aasa aasc aasd aasm aass abaa abab abac abad abam abas abb- abba abbb abbo abbs abca abcb abcc abcd abcs abda abdo abma abmb abmc abms aboa abob abod aboo abos abs- absa absd abss acaa acab acac acad acas acba acca accc accd accm acco accs acda acdb acdc acdm acds acma acmc acms acoa acod acom acos acsa acsc acsd acsm acss adaa adab adac adad adam adao adas adba adbc adcc adcs adda addc addd addo adds adma admb adms adob adoc adod adoo ados adsa adsm adso adss amaa amac amad amam amas amb- amba ambo ambs amca amcc amco amcs amda amdo amds amm- amma ammo amob amoc amod amoo amos amsa amsc amsd amso amss aoba aoca aocs aoma aosd aoss asaa asab asac asad asam asao asas asba asbm asbo asc- asca ascb ascc asco asda asdo asds asma asmd asmm asms asob asoc asod asom asos assa assc assd asso asss baaa baad baam baas baba babb babm babo babs bac- baca bacc baco bacs bada badb badd bado bads bama bamb bamc bamm bams baos basa basc baso bass bbad bbas bbbb bbbs bbcm bbdd bbdo bcaa bcam bcas bcbc bcbs bcca bccc bccm bccs bcda bcds bcma bcms bcos bcsa bcsc bcsm bcss bdbc bddc bdos bdsd bdsm bmaa bmdb bmoc boab boac boad boas boba bobb bobo bobs boca bocm boco bocs boda bodb bodo bods boma bomb boms boob booc bood boom boos bosa bosc bosm boso boss bsaa bsac bsam bsas bsbd bscs bsms bsod bsos bssc bssd bssm c-bo c-cd caaa caab caac caam caas caba cabo cabs cac- caca cacc cacm caco cada cadc cadd cadm cado cads cama camb camc camm camo cams caod caos casa casb casc casd casm caso cass cbac cbbc cbbs cbca cbcc cbcm cbcs cbdb cbdc cbdo cbds cbms cbsa cbsc cbsm ccaa ccab ccac ccad ccam ccas ccba ccbc ccca cccb cccc cccm cccs ccdc ccdm ccds ccma ccmb ccmc ccmd ccmm ccms ccob ccoc ccod ccom ccsa ccsd ccss cdaa cdac cdad cdba cdcs cdda cddb cdma cdms cdom cdos cdss cmaa cmac cmas cmba cmbc cmbs cmcc cmcs cmda cmdb cmmb cmmc cmms cmoc cmos cmsa cmsc coad coas coba cobb cobo cobs coca coco coda codd cods com- coma comb comc comd comm como coms coob cood coom coos cosa cosc cosm coso coss csaa csab csac csao csas csbm cscb cscc cscd csco cscs csda csdb csma csmc csob csom csos cssa cssd cssm d-bo daab daad daam daas daba dabb dabo dabs daca dacs dada dado dads dama damb damm damo dams daos dasa dasb dasc dasd dass dbas dbcc dbcs dbms dbos dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dcma dcms dcom dcos dcsc dcss dddd ddoc ddss dmaa dmab dmac dmas dmba dmcc dmcm dmcs dmdc dmds dmsa dmso dmss doab doas doba dobb dobs doca doco docs dod- doda dodd dodo dods doma domb domm domo doms doob dood doom doos dosa doso doss dsac dsba dsbc dscc dscs dsda dsdm dsmb dsmc dsms dsoa dsos dssa dssc maaa maac maad maam maas maba mabo mabs mac- maca macb macc macd maco macs mada madb madc madd mado mads mama mamc mamo mams maoc maos masa masc mass mbac mbam mbas mbba mbbs mbca mbcs mbda mbdb mbms mcaa mcac mcad mcas mcba mcbc mcca mccc mccd mcdc mcdd mcdo mcmc mcsa mcsd mcss mdac mdas mdca mdcc mddm mdds mdma mdmc mdoc mdos mdsd mmaa mmab mmac mmas mmcc mmcd mmcm mmcs mmda mmdb mmdc mmds mmmc mmmd mmmm mmms mmod mmsc mmsd moaa moab moac