a-a a-b a-c aaa aab aac aad aam aan aar aas ab- aba abb abc abd abm abn abr abs ac- aca acb acc acd acm acn acr acs ad- ada adb adc add adm adn adr ads ama amb amc amd amm amn amr ams an- ana anb anc and anm ann anr ans ar- ara arb arc ard arm arn arr ars as- asa asb asc asd asm asn asr ass baa bab bac bad bam ban bar bas bba bbb bbc bbd bbm bbn bbr bbs bca bcb bcc bcd bcm bcn bcr bcs bda bdb bdc bdd bdm bdr bds bma bmb bmc bmd bmm bmn bmr bms bna bnb bnc bnd bnn bnr bns bra brb brd brm brn brr brs bsa bsb bsc bsd bsm bsn bsr bss c-- caa cab cac cad cam can car cas cba cbb cbc cbd cbm cbn cbr cbs cca ccb ccc ccd ccm ccn ccr ccs cda cdb cdc cdd cdm cdn cdr cds cma cmb cmc cmd cmm cmn cmr cms cn- cna cnb cnc cnd cnm cnn cnr cns cra crb crc crd crm crn crr crs csa csb csc csd csm csn csr css daa dab dac dad dam dan dar das dba dbb dbc dbd dbm dbn dbr dbs dca dcb dcc dcd dcm dcn dcr dcs dda ddb ddc ddd ddm ddn ddr dds dma dmb dmc dmd dmm dmn dmr dms dna dnb dnc dnd dnm dnn dnr dns dra drb drc drd drm drn drr drs dsa dsb dsc dsd dsm dsn dsr dss m-r maa mab mac mad mam man mar mas mba mbb mbc mbd mbm mbr mbs mc- mca mcb mcc mcd mcm mcn mcr mcs mda mdb mdc mdd mdm mdn mdr mds mma mmb mmc mmd mmm mmn mmr mms mna mnb mnc mnm mnn mnr mns mra mrb mrc mrd mrm mrn mrr mrs msa msb msc msd msm msn msr mss naa nab nac nad nam nan nar nas nba nbb nbc nbd nbm nbn nbr nbs nca ncb ncc ncd ncm ncn ncr ncs nda ndb ndc ndd ndm ndn ndr nds nma nmb nmc nmd nmm nmn nmr nms nna nnb nnc nnm nnn nns nra nrb nrc nrd nrm nrn nrr nrs nsa nsb nsc nsd nsm nsn nsr nss ra- raa rab rac rad ram ran rar ras rba rbb rbc rbd rbm rbn rbr rbs rca rcb rcc rcd rcm rcn rcr rcs rda rdb rdc rdd rdm rdn rdr rds rma rmb rmc rmd rmm rmn rmr rms rna rnb rnc rnd rnm rnn rnr rns rra rrb rrc rrd rrm rrn rrr rrs rsa rsb rsc rsd rsm rsn rsr rss saa sab sac sad sam san sar sas sba sbb sbc sbd sbm sbn sbr sbs sca scb scc scd scm scn scr scs sda sdb sdc sdd sdm sdn sdr sds sma smb smc smd smm smn smr sms sna snb snc snd snm snn snr sns sr- sra srb src srd srm srn srr srs ss- ssa ssb ssc ssd ssm ssn ssr sss

-ana aaaa aaab aaac aaad aaam aaan aaar aaas aaba aabb aabc aabd aabm aaca aacb aacc aacd aacm aacn aacr aacs aada aadc aads aama aamb aamc aamd aamn aamr aams aana aand aara aarc aard aarm aars aasa aasc aasd aasm aass abaa abab abac abad abam aban abar abas abb- abba abbb abbr abbs abca abcb abcc abcd abcn abcr abcs abda abma abmb abmc abms abra abrc abrs abs- absa absd abss acaa acab acac acad acan acar acas acba acca accc accd accm accs acda acdb acdc acdm acds acma acmc acms acr- acra acrc acrm acrr acrs acsa acsc acsd acsm acss adaa adab adac adad adam adan adar adas adba adbc adcc adcs adda addc addd addn addr adds adma admb admr adms adna adns adra adrs adsa adsm adsr adss amaa amac amad amam aman amar amas amb- amba ambn ambr ambs amca amcc amcs amda amds amm- amma amnd amns amra amrc amsa amsc amsd amsn amss ana- anaa anab anac anad anam anan anar anas anba anbb anca ancc and- anda andr ands anma anna annb anns anrc ansa ansd arab arac arad aram aran arar aras arba arbs arc- arca arcm arcs arda ardc ardm ards arma armc armd armm arms arna arnd arns arr- arra arrc arrr arrs ars- arsa arsc arsd asaa asab asac asad asam asan asar asas asba asbm asc- asca ascb ascc ascr asda asds asma asmd asmm asmr asms asnc asra asrc asrm asrs assa assc assd assn assr asss baaa baad baam baan baar baas baba babb babm babr babs bac- baca bacc bacn bacs bada badb badd badr bads bama bamb bamc bamm bamn bams bana banc band bann banr bans bar- bara barb barc bard barm barn barr bars basa basc bass bbad bbas bbbb bbbs bbcm bbdd bbrc bcaa bcam bcar bcas bcbc bcbs bcca bccc bccm bccs bcda bcds bcma bcms bcra bcrs bcsa bcsc bcsm bcsn bcss bd-r bdbc bddc bdna bdrm bdsd bdsm bmaa bman bmdb bnas bnrr bnss brab brac brad bram bran bras brca brcb brda brdm brds brmc brna brns brrm brrr brrs brsb brsr bsaa bsac bsam bsas bsbd bscs bsms bsnd bsns bsra bsrd bsrm bssc bssd bssm c-cd caaa caab caac caam caan caas caba cabs cac- caca cacc cacm cacr cada cadc cadd cadm cadr cads cama camb camc camm cams cana canc cand cann cans cara carb carc card carm carn carr cars casa casb casc casd casm casr cass cbac cbar cbbc cbbs cbca cbcc cbcm cbcn cbcr cbcs cbdb cbdc cbdn cbds cbms cbna cbnd cbrd cbrm cbrn cbsa cbsc cbsm cbsn ccaa ccab ccac ccad ccam ccar ccas ccba ccbc ccbn ccca cccb cccc cccm cccs ccdc ccdm ccdn ccdr ccds ccma ccmb ccmc ccmd ccmm ccms ccna ccnb ccnc ccnm ccnr ccns ccra