a-a a-b a-c aaa aab aac aam aar aas ab- aba abb abc abm abr abs ac- aca acb acc acm acr acs ama amb amc amm amr ams ar- ara arb arc arm arr ars as- asa asb asc asm asr ass baa bab bac bam bar bas bba bbb bbc bbm bbr bbs bca bcb bcc bcm bcr bcs bma bmb bmc bmm bmr bms bra brb brm brr brs bsa bsb bsc bsm bsr bss c-- caa cab cac cam car cas cba cbb cbc cbm cbr cbs cca ccb ccc ccm ccr ccs cma cmb cmc cmm cmr cms cra crb crc crm crr crs csa csb csc csm csr css m-r maa mab mac mam mar mas mba mbb mbc mbm mbr mbs mc- mca mcb mcc mcm mcr mcs mma mmb mmc mmm mmr mms mra mrb mrc mrm mrr mrs msa msb msc msm msr mss ra- raa rab rac ram rar ras rba rbb rbc rbm rbr rbs rca rcb rcc rcm rcr rcs rma rmb rmc rmm rmr rms rra rrb rrc rrm rrr rrs rsa rsb rsc rsm rsr rss saa sab sac sam sar sas sba sbb sbc sbm sbr sbs sca scb scc scm scr scs sma smb smc smm smr sms sr- sra srb src srm srr srs ss- ssa ssb ssc ssm ssr sss

aaaa aaab aaac aaam aaar aaas aaba aabb aabc aabm aaca aacb aacc aacm aacr aacs aama aamb aamc aamr aams aara aarc aarm aars aasa aasc aasm aass abaa abab abac abam abar abas abb- abba abbb abbr abbs abca abcb abcc abcr abcs abma abmb abmc abms abra abrc abrs abs- absa abss acaa acab acac acar acas acba acca accc accm accs acma acmc acms acr- acra acrc acrm acrr acrs acsa acsc acsm acss amaa amac amam amar amas amb- amba ambr ambs amca amcc amcs amm- amma amra amrc amsa amsc amss arab arac aram arar aras arba arbs arc- arca arcm arcs arma armc armm arms arr- arra arrc arrr arrs ars- arsa arsc asaa asab asac asam asar asas asba asbm asc- asca ascb ascc ascr asma asmm asmr asms asra asrc asrm asrs assa assc assr asss baaa baam baar baas baba babb babm babr babs bac- baca bacc bacs bama bamb bamc bamm bams bar- bara barb barc barm barr bars basa basc bass bbas bbbb bbbs bbcm bbrc bcaa bcam bcar bcas bcbc bcbs bcca bccc bccm bccs bcma bcms bcra bcrs bcsa bcsc bcsm bcss bmaa brab brac bram bras brca brcb brmc brrm brrr brrs brsb brsr bsaa bsac bsam bsas bscs bsms bsra bsrm bssc bssm caaa caab caac caam caas caba cabs cac- caca cacc cacm cacr cama camb camc camm cams cara carb carc carm carr cars casa casb casc casm casr cass cbac cbar cbbc cbbs cbca cbcc cbcm cbcr cbcs cbms cbrm cbsa cbsc cbsm ccaa ccab ccac ccam ccar ccas ccba ccbc ccca cccb cccc cccm cccs ccma ccmb ccmc ccmm ccms ccra ccrc ccrs ccsa ccss cmaa cmac cmas cmba cmbc cmbs cmcc cmcs cmmb cmmc cmms cmra cmrr cmrs cmsa cmsc crab crac cram crar cras crbc crca crcc crcr crmb crms crsa crss csaa csab csac csar csas csbm cscb cscc cscr cscs csma csmc csra csrc csrs cssa cssm cssr maaa maac maam maar maas maba mabs mac- maca macb macc macr macs mama mamc mams mar- mara marc marm marr mars masa masc masr mass mbac mbam mbas mbba mbbs mbca mbcs mbms mbrs mcaa mcac mcas mcba mcbc mcca mccc mcmc mcrc mcsa mcss mmaa mmab mmac mmar mmas mmcc mmcm mmcs mmmc mmmm mmms mmrc mmsc mr-c mrac mras mrbb mrbm mrbs mrca mrcb mrcc mrcs mrmc mrrc mrsa mrsc msaa msar msas msba msca mscc msma msmb msmc msmm msms msra msrb mssa mssm mssr raab raam raas raba rabb rabs rac- raca racc racs rama ramb ramm rams rara rarb rars rasa rasc rasm rass rbbb rbbr rbbs rbms rbss rcac rcas rcbc rccb rccc rccs rcms rcsa rcsc rcss rmas rmbs rmsc rras rrmc rrrr rsaa rscc rscs rsma rssa sa-c saab saac saam saar saas saba sabb sabc sabr sabs saca sacc sacr sacs sam- sama samc samm sams sara sarc sarm sarr sars sasa sasc sasm sass sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbma sbmc sbsa scaa scab scac scam scar scas scba sccc sccm sccs scma scmc scmm scms scr- scra scrc scrs scsa scsc scsr smaa smac smas smba smbc smcc smsc smss sram sras srbc srcc srmc ssaa ssab ssac ssam ssas ssbr ssca sscc sscs ssmc ssra ssrc ssrm ssrs sssa sssb sssc sssm ssss

-aaa- a-mac a-ram aaaam aaaas aaarc aaasa aaass aabaa aabba aabra aacbc aacms aacsa aacsb aacsm aacss aamra aamsa aaram aarma aasra abaab ababa ababs abaca abacs abara abasa abass abbac abbar abbas abbrs abcam abcas abccc abrac abram abrar abras abrsm absam absar acaca acacb acar- acara acarm acars acass accas accra acrab amaas amama amara amarc amasa amass ambac ambam ambar ambas ambra ammar ammas amram amras amsar ar-ab ara-c arab- araba arabs araca arama arams arara arars arass arbab arbar arbas arcam arcas armar armas arram arras arsac asaba asabc asama asara asasa asbca asbms ascar asmaa asmar asram asrar assab assac assam assas b-cas b-mac baama baars babam babar babas babbs babra bacab bacar bacas bacca bamba bambs bamma bamra baraa barab barac baram barar baras barba barbs barca barcs barma barms barra barrs barsa barss basab basar basca basma basra bassa bbsrc bccma bmarc bmcsr braas braca bracc bracs brama brams brasa brasc brass brmmm brrar brrrr bsaba c-a-c c-mac c-ram ca-ca caaba caama cabas cabra cacas camac camar camas camba cambs camma camra caraa carab carac caras carb- carbs carma carms carra carrs casar casas casca casma cbars ccass ccccc cccma craba crabb crabs cram- cramb cramm crams crars crass csaba csars cssra ma-ma maams