-ase a-be a-ii aaaa aaab aaac aaae aaaf aaai aaas aaba aabb aabc aabi aaca aacb aacc aace aacf aaci aacs aaea aaec aaes aafa aafb aafc aaff aafi aaib aaic aaii aais aasa aasc aase aasf aasi aass abaa abab abac abae abaf abai abas abb- abba abbb abbe abbi abbs abca abcb abcc abcf abci abcs abec abee abes abff abia abib abic abie abis abs- absa abse absf absi abss acaa acab acac acae acai acas acba acca accc acce accf acci accs ace- acea acec aces acfc acfe acfi acfs aci- acia acic acie acif acis acsa acsc acse acsi acss aeac aeaf aeas aebi aebs aecb aeci aesc aess afaa afbs afca afcb afcc afci afcs afee afes affa affc affi affs afia afib afif afis afsa afsb afsc aiai aias aiba aica aicc aice aicf aics aiea aiee aiff aifs aiia aiib aiic aisa aisb aise aisi asaa asab asac asae asaf asai asas asba asc- asca ascb ascc asce asci asea asec asee ases asfa asfi asia asic asie asif asii asis assa assc asse assi asss ba-i baaa baaf baas baba babb babe babi babs bac- baca bacc bace baci bacs baes bafc baff baia baib baic baie bais basa basc base basf basi bass bbas bbbb bbbs bbci bbeb bbfc bcaa bcas bcbc bcbs bcca bccc bcci bccs bcec bces bcfc bcia bcie bcis bcsa bcsc bcss beaf beas beba bebb bebe bebi beca beci becs beeb beef bees befa befe beff beia beic beis bes- besa bese bess bfas bfca bfcs bffs bfsi biaf bias biba bibb bibe bibi bibs bica bicc bice bici bics bieb bief bies bifa biff bifi biis bis- bisa bisc bise biss bsaa bsac bsas bsci bscs bsea bseb bsec bsee bses bsfa bsfc bsff bsfs bsic bssc bsse caaa caab caac caaf caas caba cabe cabf cabi cabs cac- caca cacc cace caci caec caei caes cafa cafb cafc cafe caff cafs caia caib caic cais casa casb casc case casi cass cbac cbbc cbbs cbca cbcc cbce cbcs cbea cbec cbee cbef cbfb cbfc cbia cbsa cbsc cbse cbsi ccaa ccab ccac ccaf ccai ccas ccba ccbc ccca cccb cccc cccf ccci cccs ccee ccfa ccfc ccff ccfi ccic ccii ccis ccsa ccsf ccsi ccss ceac ceas ceba cebs cec- ceca cece ceci cecs ceeb ceec cees cef- cefa cefc cesa cesc cese cesi cess cfaa cfab cfac cfae cfbc cfbs cfca cfcb cfcf cfcs cffb cfia cfsa cfse cfsi ciaa cias ciba cibc cibe cibi cica cicc cici cics ciee cies cifa cife ciff cifs ciia ciii ciis cis- cisa cisc cise ciss csaa csab csac csas csbf cscb cscc csce cscf csci cscs csea csec csee csfc csia csib csis cssa csse eaaf eaba eaca eacc eaec eafb eaif easa ease easi ebac ebba ebbc ebbs ebcc ebes ebfc ebic ebis ebsa ecaa ecac ecai ecbc ecbe ecca eccb eccc ecce ecci ecef eces ecfa ecfc ecfs ecib ecis ecsa ecsc ecse ecss eeca eecs eeea eeee eees eefa eefe eese eesi efab efas efca efes effa effi effs efic efsa efsi eica eics eiec eiei eies eifs eisa eise eiss esab esac esai esas esba esbs esca escb esce esci escs esea esee eses esfs esie esis essa esse essi faaa faac faas faba fabe fabi fabs faca facc face facs faeb faes fafa fafc fafe faff fafi faie fais fasa fasc fase fasi fass fbis fcab fcas fcba fcbs fcca fccf fces fcic fcii fcsc feaf feas feba febs fece feeb fees fefc fefe feff fefi feia feie feis fesa fese fess ffcc ffee ffff ffii ffsa ffss fiaa fiac fiaf fias fiba fibe fibs fica ficc fice fics fiec fief fies fifa fifc fife fiff fifi fiii fisa fisc fise fisi fiss fsai fsas fscb fscc fsec fsfi fsia fssa fssc fssf i-be iaaa iaac iaai iaas iaba iaca iacc iacs iaea iaec iafc iafe iaff iaia iais iasa iasc iasi ibac ibas ibca ibcs ibea ibec ibes ibfi ibia ibie ibis ibsa ibsf ibss icaa icab icac icaf icai icas icbc icbs icca iccb iccc iccf icci iccs icea icec icee icef ices icfb icis icsa icsb icsc icse icsi icss ieac iecc ieie iesa iesc iesi ifaa ifac ifae ifas ifbb ifes ific ifis ifsa ifsb ifsc iiac iias iica iies iifa iiie iiii iiis iisc iisi is-a isac isae isaf isai isas isba isbe isca iscc isci iscs isea iseb isec isee ises isfa isfc isia isic isie isis issa issc isse issf issi isss s-ib s-ic s-ii sa-c saab saac saae saaf saas saba sabb sabc sabe sabi sabs saca sacc sace saci sacs saeb saes safa safb safc safe saff safi saia saic saie saif sais sasa sasc sase sasf sasi sass sbaa sbac sbai sbas sbbs sbca sbcc sbcs sbef sbfc sbia sbic sbsa sbse sbsi scaa scab scac scaf scai scas scba scbi sccc scce sccs scea scec scee scfa scfc scfe scfi sci- scia scic scie scif scis scsa scsc scsi se-c se-e se-f se-i se-s seaa seab seac seaf seas seba sebe sebi sebs sec- seca secc sece secs seea seeb seec seef sees sefa seff sefi seia seie seif seii seis sesa sesc sese sesi sess sfas sfba sfbc sfca sfcc sfcs sffc sfia sfss siaa siab siac siae siaf siai sias siba sibc sibe sibi sibs sica sicc sice sici sics siec sief sies sifa sife siff sisa sisc sise sisi siss ssaa ssab ssac ssas ssca sscc ssce ssci sscs ssec ssee sses ssfc ssis sssa sssb sssc sssf sssi ssss