a-a a-b a-c a-t aaa aab aac aaf aam aas aat ab- aba abb abc abf abm abs abt ac- aca acb acc acf acm acs act af- afa afb afc aff afm afs aft ama amb amc amf amm ams amt as- asa asb asc asf asm ass ast at- ata atb atc atf atm ats att baa bab bac baf bam bas bat bba bbb bbc bbf bbm bbs bbt bca bcb bcc bcf bcm bcs bct bfa bfb bfc bff bfm bfs bft bma bmb bmc bmf bmm bms bmt bsa bsb bsc bsf bsm bss bst bta btb btc btf btm bts btt c-- caa cab cac caf cam cas cat cba cbb cbc cbf cbm cbs cbt cca ccb ccc ccf ccm ccs cct cfa cfb cfc cff cfm cfs cft cma cmb cmc cmf cmm cms cmt csa csb csc csf csm css cst cta ctb ctc ctf ctm cts ctt faa fab fac faf fam fas fat fba fbb fbc fbf fbm fbs fbt fca fcb fcc fcf fcm fcs fct ffa ffc fff ffm ffs fft fma fmb fmc fmf fmm fms fmt fsa fsb fsc fsf fsm fss fst fta ftb ftc ftf ftm fts ftt m-f maa mab mac maf mam mas mat mba mbb mbc mbf mbm mbs mbt mc- mca mcb mcc mcf mcm mcs mct mfa mfb mfc mff mfm mfs mft mma mmb mmc mmf mmm mms mmt msa msb msc msf msm mss mst mta mtb mtc mtf mtm mts mtt saa sab sac saf sam sas sat sba sbb sbc sbf sbm sbs sbt sca scb scc scf scm scs sct sfa sfb sfc sff sfm sfs sft sma smb smc smf smm sms smt ss- ssa ssb ssc ssf ssm sss sst sta stb stc stf stm sts stt taa tab tac taf tam tas tat tba tbb tbc tbf tbm tbs tbt tca tcb tcc tcf tcm tcs tct tfa tfb tfc tff tfm tfs tft tma tmb tmc tmf tmm tms tmt tsa tsb tsc tsf tsm tss tst tta ttb ttc ttf ttm tts ttt

aaaa aaab aaac aaaf aaam aaas aaba aabb aabc aabm aabt aaca aacb aacc aacf aacm aacs aact aafa aafb aafc aaff aama aamb aamc aams aasa aasc aasf aasm aass aast aata aatc aatf aatt abaa abab abac abaf abam abas abat abb- abba abbb abbs abbt abca abcb abcc abcf abcs abct abff abma abmb abmc abms abmt abs- absa absf abss abta abts ac-t acaa acab acac acas acat acba acca accc accf accm accs acct acfc acfm acfs acft acma acmc acmf acms acsa acsc acsm acss acst acta actc actf acts actt afaa afam afat afbs afca afcb afcc afcs affa affc affs afft afma afmc afsa afsb afsc afsm afst afta aftc afts amaa amac amam amas amat amb- amba ambs amca amcc amcs amfm amm- amma amsa amsc amss amst amta amtc amts asaa asab asac asaf asam asas asat asba asbm asc- asca ascb ascc asct asfa asma asmf asmm asms asmt assa assc asss asst asta astb astc astm asts at-t ataa atab atac atas atat atbs atca atcc atcf atcs atfb atfc atfs atm- atma atms atsb atsc atst atta atts baaa baaf baam baas baat baba babb babm babs bac- baca bacc bacs bact bafc baff baft bama bamb bamc bamf bamm bams basa basc basf bass bast bata batc batf bats batt bbas bbbb bbbs bbcm bbfc bcaa bcam bcas bcat bcbc bcbs bcca bccc bccm bccs bcfc bcfm bcma bcms bcsa bcsc bcsm bcss bctc bcts bfas bfca bfcs bffs bfta bfts bftt bmaa bmfc bmtc bmts bsaa bsac bsam bsas bsat bscs bsfa bsfc bsff bsfs bsms bsmt bssc bssm bsts btaa btaf btcc btcs btfc btss bttb caaa caab caac caaf caam caas caat caba cabf cabs cac- caca cacc cacm cafa cafb cafc caff cafs cama camb camc camm cams camt casa casb casc casm cass cast cat- cata catb catc catf catm cats catt cbac cbat cbbc cbbs cbca cbcc cbcm cbcs cbct cbfb cbfc cbms cbsa cbsc cbsm cbta cbtc cbtf ccaa ccab ccac ccaf ccam ccas ccat ccba ccbc ccca cccb cccc cccf cccm cccs ccfa ccfc ccff ccma ccmb ccmc ccmm ccms ccsa ccsf ccss ccst cctb cctc cctt cfaa cfab cfac cfam cfbc cfbs cfbt cfca cfcb cfcf cfcm cfcs cffb cfma cfmb cfms cfsa cfta cftc cmaa cmac cmas cmba cmbc cmbs cmcc cmcs cmfb cmmb cmmc cmms cmsa cmsc cmsf cmst cmta cmtc csaa csab csac csas csat csbf csbm cscb cscc cscf cscs csfc csma csmc cssa cssm csta cstc cstm csts ctab ctba ctbs ctca ctcf ctfc ctfs ctma ctsa ctsc ctss ctta ctts faaa faac faam faas faba fabm fabs faca facc facs fact fafa fafc faff fama fams fasa fasc fasm fass fast fata fatc fatf fats fatt fcab fcas fcat fcba fcbs fcca fccf fcsc fcst ffcc ffff ffsa ffss fftf fmca fmcs fmss fsas fscb fscc fsma fssa fssc fssf fsta ft-c ftam ftfc ftsa maaa maac maaf maam maas maat maba mabs mac- maca macb macc macs mact mafa mafb mafc maff mama mamc mamf mams masa masc mass mast mata matc mats matt mbac mbam mbas mbba mbbs mbca mbcs mbms mbsf mbta mcaa mcac mcas mcat mcba mcbc mcca mccc mcfa mcfc mcmc mcmt mcsa mcss mcst mctc mcts mfas mfbm mfcc mffa mfsb mftf mmaa mmab mmac mmas mmcc mmcm mmcs mmct mmff mmmc mmmm mmms mmsc mmst mmts msaa msas msat msba msca mscc msfc msff msfs msft msma msmb msmc msmm msms mssa mssf mssm msst msta mstc msts mtaa mtab mtac mtas mtbc mtbs mtfc mtff mtsa mtss mtst mtts sa-c saab saac saaf saam saas saat saba sabb sabc sabs saca sacc sacs sact safa safb safc saff safm saft sam- sama samc samm sams samt sasa sasc sasf sasm sass sast sata satb satc sats satt sbaa