-al a-a a-b a-c a-t aaa aab aac aal aas aat ab- aba abb abc abl abs abt ac- aca acb acc acl acs act al- ala alb alc all als alt as- asa asb asc asl ass ast at- ata atb atc atl ats att baa bab bac bal bas bat bba bbb bbc bbl bbs bbt bca bcb bcc bcl bcs bct bla blb blc bll bls blt bsa bsb bsc bsl bss bst bta btb btc btl bts btt c-- caa cab cac cal cas cat cba cbb cbc cbl cbs cbt cca ccb ccc ccl ccs cct cl- cla clb clc cll cls clt csa csb csc csl css cst cta ctb ctc ctl cts ctt la- laa lab lac lal las lat lba lbb lbc lbl lbs lbt lca lcb lcc lcl lcs lct lla llb llc lll lls llt lsa lsb lsc lsl lss lst lta ltb ltc ltl lts ltt saa sab sac sal sas sat sba sbb sbc sbl sbs sbt sca scb scc scl scs sct sla slb slc sll sls slt ss- ssa ssb ssc ssl sss sst sta stb stc stl sts stt taa tab tac tal tas tat tba tbb tbc tbl tbs tbt tca tcb tcc tcl tcs tct tla tlc tll tls tlt tsa tsb tsc tsl tss tst tta ttb ttc ttl tts ttt

aaaa aaab aaac aaal aaas aaba aabb aabc aabl aabt aaca aacb aacc aacl aacs aact aala aalc aall aals aasa aasc aass aast aata aatc aatt abaa abab abac abal abas abat abb- abba abbb abbs abbt abca abcb abcc abcl abcs abct abla abls abs- absa absl abss abta abts ac-t acaa acab acac acas acat acba acbl acca accc accs acct acla aclc acls acsa acsc acsl acss acst acta actc actl acts actt alaa alac alal alas alat alb- alba albc albs alca alcc alcs all- alla alll alls alsa alsc alst alta alts asaa asab asac asal asas asat asba asc- asca ascb ascc ascl asct asla assa assc assl asss asst asta astb astc astl asts at-l at-t ataa atab atac atal atas atat atbs atca atcc atcl atcs atla atls atsb atsc atst atta atts baaa baal baas baat baba babb babs bac- baca bacc bacs bact bala balc ball bals balt basa basc bass bast bata batc bats batt bbas bbbb bbbs bblb bbls bcaa bcas bcat bcbc bcbs bcca bccc bccl bccs bcsa bcsc bcsl bcss bctc bcts blaa blab blac blas blat blbt blls blss blst blts bsaa bsac bsas bsat bscs bslc bssc bsts btaa btcc btcl btcs btla btss bttb caaa caab caac caal caas caat caba cabs cac- caca cacc cala calc call cals calt casa casb casc casl cass cast cat- cata catb catc cats catt cbac cbal cbat cbbc cbbs cbca cbcc cbcl cbcs cbct cblb cblc cbsa cbsc cbta cbtc cbtl ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccl cccs ccla cclc ccls ccsa ccsl ccss ccst cctb cctc cctl cctt clab clas clat clsa clsc cltb cltc clts csaa csab csac csas csat cscb cscc cscl cscs csla cssa csta cstc csts ctab ctal ctba ctbs ctca ctls ctsa ctsc ctss ctta ctts laaa laac laal laas laat laba labs laca lacc lacl lacs lact lala lall lasa lass last lata latc lats latt lbcc lbsc lcac lcat lcbc lcca lccc lccs lcls lcsc lctl lcts llat llbs llcc llcs lllc llll lsat lscb lscs lsla lssa lsts ltac ltbl ltcc ltcs ltsa lttc sa-c saab saac saal saas saat saba sabb sabc sabs saca sacc sacs sact sala salc sall sals salt sasa sasc sasl sass sast sata satb satc satl sats satt sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbsa sbst sbtc scaa scab scac scal scas scat scba sccc sccl sccs scct scl- sclc scls scsa scsc scsl scst sctc sctl scts slaa slab slac slas slat slcc slsa slsc slst slts ssaa ssab ssac ssas ssat ssca sscc sscs ssla sslc sslt sssa sssb sssc ssss ssta sstb sstc sstl ssts stab stac stal stas stat stbc stbs stca stcc stcs stlc stlt stss sttc taa- taal taas taat taba tabb tabc tabl tabs taca tacc tacl tacs tact tala talc tall tals tasa tasb tasc tass tast tata tatb tats tatt tbas tbbs tbca tbcb tbcc tbst tbta tcbs tcca tccc tctc tcts tlac tsaa tsal tsat tsbc tsca tscc tssa tsst tstc tsts ttab ttbb ttss tttt

-aaa- aaaas aaasa aaass aaata aabaa aabba aacbc aacsa aacsb aacsl aacss aalst aatal abaab ababa ababs abaca abacs abala aball abasa abass abbac abbas abbat abcas abccc abtaa acaca acacb acala acall acass acast acats accas accts aclla actas actsa alaba alaca alala alasa alass alast alata albac albal albas alctt allal allas allat allss alsab alt-a asaba asabc asala asall asasa asats asbca aslab assab assac assal assas assat assts astab astal astas astat atala atall atats atbat atlas atlls atlst attal attas attla b-cas baalc baals baata babas babbs bacab bacas bacca bacta balac balal balas balat balca balla balls ballt balsa balta balts basab basal basca bassa basta bastl basts batab batac batas batat batsa batta batts bball bcbst bccat bccsl blaas blabs blaca blacc blass blast blata blats blatt bsaba c-a-c ca-ca caaba cabal cabas cacas cacls calas calat calc- calca calcs calla callb calls calta casal casas casca casla casta casts cata- catal catla catss catta catts ccass ccccc cccsl claas clacl clacs clasa class clast clatt csaba cstcc la-la labab labas labat labba lacca lact- lacta lactb lalab lalas lalla lalls lalta lasal lasca lassa lasta lasts latab latal latas latst latta lball llaas lsats lsccb saaba saabs saala saasa sabac sabal sabas sabat sabca sabla sabsa sacas sacc- sacca sacla sacsa sacta salal salas salat salba salla salsa salss salta salts sasca sassa sat-b satat satta sbata scabs scala scalc scall scalt scat- scata scats scatt sccbc scsaa slabs