a-ii aaaa aaab aaac aaai aaal aaas aaba aabb aabc aabi aabl aabt aaca aacb aacc aaci aacl aacs aact aaib aaic aaii aais aala aalc aali aall aals aasa aasc aasi aass aast aata aatc aatt abaa abab abac abai abal abas abat abb- abba abbb abbi abbs abbt abca abcb abcc abci abcl abcs abct abia abib abic abil abis abit abla abls abs- absa absi absl abss abta abts ac-t acaa acab acac acai acas acat acba acbl acca accc acci accs acct aci- acia acic acis acla aclc acli acls acsa acsc acsi acsl acss acst acta actc acti actl acts actt aiai aias aiba aibl aica aicc aics aiia aiib aiic aila aili ails aisa aisb aisi aisl aist aita aiti aits aitt alaa alac alai alal alas alat alb- alba albc albi albs alca alcc alcs ali- alia alib alii alil alis alit all- alla alli alll alls alsa alsc alst alta alti alts asaa asab asac asai asal asas asat asba asc- asca ascb ascc asci ascl asct asia asic asii asil asis asit asla asli assa assc assi assl asss asst asta astb astc asti astl asts at-l at-t ataa atab atac atai atal atas atat atbs atca atcc atcl atcs atia atic atil atis atit atla atli atls atsb atsc atsi atst atta atti atts ba-i baaa baal baas baat baba babb babi babs bac- baca bacc baci bacs bact baia baib baic bail bais bait bala balc bali ball bals balt basa basc basi bass bast bata batc bati bats batt bbas bbbb bbbs bbci bblb bbls bcaa bcas bcat bcbc bcbs bcca bccc bcci bccl bccs bcia bcis bcit bcsa bcsc bcsl bcss bctc bcts bial bias biat biba bibb bibi bibl bibs bica bicc bici bics biis bila bili bill bils bilt bis- bisa bisc bisl biss bist bita bitc bits bitt blaa blab blac blas blat blbt blic blis blit blls blss blst blts bsaa bsac bsas bsat bsci bscs bsic bslc bssc bsts btaa btcc btcl btcs btla btss bttb caaa caab caac caal caas caat caba cabi cabs cac- caca cacc caci caia caib caic cail cais cait cala calc cali call cals calt casa casb casc casi casl cass cast cat- cata catb catc cati cats catt cbac cbal cbat cbbc cbbs cbca cbcc cbcl cbcs cbct cbia cbit cblb cblc cbsa cbsc cbsi cbta cbtc cbtl ccaa ccab ccac ccai ccas ccat ccba ccbc ccca cccb cccc ccci cccl cccs ccic ccii ccil ccis ccla cclc ccli ccls ccsa ccsi ccsl ccss ccst cctb cctc cctl cctt ciaa cial cias ciat ciba cibc cibi cica cicc cici cics cict ciia ciii ciis ciit cila cili cill cils cilt cis- cisa cisc cisl ciss cist cita citb citi citl cits citt clab clai clas clat clib clic clii clis clit clsa clsc cltb cltc clts csaa csab csac csas csat cscb cscc csci cscl cscs csia csib csis csit csla cssa csta cstc csts ctab ctal ctba ctbi ctbs ctca ctia ctic ctls ctsa ctsc ctss ctta ctts iaaa iaac iaai iaal iaas iaat iaba iaca iacc iacs iact iaia iais iala iall ials iasa iasc iasi iata iatc iati ibac ibas ibat ibca ibcs ibia ibis ibsa ibss ibtb ibtc ibtl ibts icaa icab icac icai ical icas icat icbc icbs icca iccb iccc icci iccl iccs icct icis icll icsa icsb icsc icsi icss icst icta icts iiac iias iica iiii iiis iiit iila iisc iisi iist iita iitt ilac ilal ilas ilbc ilca ilia ilic ilis ilit ill- illa illi ills illt ilsa ilts is-a isac isai isal isas isat isba isbl isbt isca iscc isci iscs isct isia isic isil isis isit isla isls issa issc issi isss ista istc isti ists itaa itac itai ital itas itat itbs itcs itia itic itil itis itll itsa itsi itta laaa laac laal laas laat laba labi labs laca lacc laci lacl lacs lact laia laic lail lais lait lala lali lall lasa lasi lass last lata latc lati lats latt lbcc lbia lbsc lcac lcat lcbc lcca lccc lccs lcia lcis lcls lcsc lctl lcts liac lias liat liba libc libs lica lics lict liia liii liis lila lilb lili lill lils lilt lisa lisi liss list lita litb liti litl lits litt llat llbs llcc llcs lllc llll lsat lscb lscs lsla lssa lsts ltac ltbl ltcc ltci ltcs ltib ltsa ltsi lttc s-ib s-ic s-ii sa-c saab saac saal saas saat saba sabb sabc sabi sabs saca sacc saci sacs sact saia saic sail sais sait sala salc sali sall sals salt sasa sasc sasi sasl sass sast sata satb satc sati satl sats satt sbaa sbac sbai sbas sbbs sbca sbcc sbcs sbct sbia sbic sbsa sbsi sbst sbtc scaa scab scac scai scal scas scat scba scbi sccc sccl sccs scct sci- scia scic scil scis scit scl- sclc scls scsa scsc scsi scsl scst sctc sctl scts siaa siab siac siai sial sias siat siba sibc sibi sibs sica sicc sici sics siit sil- sila silc sili sill sils silt sisa sisc sisi siss sist sit- sita sitc siti sits sitt sl-i slaa slab slac slai slas slat slcc slib slic slit slsa slsc slst slts ssaa ssab ssac ssas ssat ssca sscc ssci sscs ssis ssit ssla sslc sslt sssa sssb sssc sssi ssss ssta sstb sstc sstl ssts stab stac stai stal stas stat stbc stbs stca stcc stcs stia stib stic stil stis stit stlc stlt stsi stss sttc taa- taal taas taat taba tabb tabc tabi tabl tabs taca tacc taci tacl tacs tact taia tail tais tait tala talc tali tall tals tasa tasb tasc tasi tass tast tata tatb tati tats tatt tbas tbbs tbca tbcb tbcc tbil tbit tbst tbta tcbs tcca tccc tctc tcts tiaa tiab tial tias tiba tibi tibs tica ticc tics tiit tila till tils tilt tisa tisb tisi tiss tist tita titc titi tits