-ase a-ak a-be aaaa aaab aaac aaae aaap aaas aaba aabb aabc aabp aaca aacb aacc aace aack aacp aacs aaea aaec aaep aaes aaka aake aapa aapc aaps aasa aasc aase aass abaa abab abac abae abak abap abas abb- abba abbb abbe abbs abca abcb abcc abcp abcs abec abee abes abpa abpc abpp abps abs- absa abse absp abss acaa acab acac acae acap acas acba acca accc acce accp accs ace- acea acec acek aces acke acks acpa acpe acps acsa acsc acse acss aeac aeap aeas aebs aecb aeka aesc aess akaa akae akap akas akca akee akes akka aksa apac apak apap apas apba apbs apca apcb apcc apcs apea apec apep apes apke appa appc apps apsa apse apss asaa asab asac asae asak asap asas asba asc- asca ascb ascc asce ascp asea asec asee asek asep ases aska aske asks aspa aspc aspe asps assa assc asse assk assp asss baaa baak baas baba babb babe babs bac- baca bacc bace back bacs baek baes bak- baka bake baks bapa bapc bape bapp baps basa basc base bask bass bbas bbbb bbbs bbeb bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccs bcec bces bcpp bcps bcsa bcsc bcss beak beap beas beba bebb bebe beca beck becs beeb beek beep bees beka beke beks bes- besa bese besk bess bksp bpcp bpea bpsa bsaa bsac bsap bsas bscp bscs bsea bseb bsec bsee bses bspp bssc bsse caaa caab caac caap caas caba cabe cabs cac- caca cacc cace cack caec caes caka cake capa capb capc cape capp caps casa casb casc case cask casp cass cbac cbbc cbbs cbca cbcc cbce cbcp cbcs cbea cbec cbee cbka cbpc cbpp cbsa cbsc cbse ccaa ccab ccac ccap ccas ccba ccbc ccca cccb cccc cccp cccs ccee ccpa ccpe ccpp ccps ccsa ccsp ccss ceac ceas ceba cebp cebs cec- ceca cece cecp cecs ceeb ceec cees ceke cepa cepc cepe cepp ceps cesa cesc cese cesp cess ckac ckbc ckbe ckck ckcs ckpc cksa cksb cpaa cpac cpap cpas cpbc cpca cpce cpcs cpea cpeb cpep cppa cpps cpsa cpsc cpsk csaa csab csac csak csas cscb cscc csce cscs csea csec csee csep cska csks cspa cspb cspc cspe csps cssa csse eaba eaca eacc eaec eapc eapp eaps easa ease ebac ebba ebbc ebbs ebcc ebes ebsa ecaa ecac ecbc ecbe ecca eccb eccc ecce eces ecka ecks ecpa ecpp ecsa ecsc ecse ecsp ecss eeca eecs eeea eeee eees eeka eeke eeks eeps eese eesk eka- ekab ekeb ekek ekes ekka ekpe epaa epac epas epcc epec epee epes eppa eppc eppp epps epsa epsc epsp epss esab esac esas esba esbs esca escb esce escs esea esee esek eses eska eske esks espa espc espe espp esps essa esse essp kaaa kaab kaak kaap kaas kaba kabb kabc kabe kacb kacc kace kacp kacs kaep kaes kaka kakc kake kakk kaks kap- kapa kapc kape kapp kaps kas- kasa kasb kasc kase kask kasp kass kbaa kbab kbac kbae kbak kbap kbas kbba kbbb kbbc kbbe kbbk kbbs kbca kbcb kbce kbck kbcs kbeb kbec kbee kbek kbes kbkb kbkk kbpa kbpc kbpe kbpk kbps kbsa kbsb kbsk kbss kcaa kcab kcac kcap kcas kcba kcbc kcbk kcbs kcca kccb kccc kcck kcea kceb kcec kcee kcep kckc kckk kcpa kcpc kcps kcsa kcsb kcsc kcse kcsp kcss kea- keak keap keas keba kebb kebc kebe keca keck keek keep kees keka kekb kekc keke keks kep- kepa kepc kepe keps kesa kesb kesc kesk kesp kess kkaa kkac kkap kkba kkbb kkbe kkbs kkcb kkck kkcs kkea kkkk kkpc kkpk kkps kksa kkse kksp kkss kpac kpae kpak kpas kpba kpbb kpbe kpbs kpcc kpcs kpek kpke kpkk kppc kppk kppp kpsc kpsp ksab ksac ksak ksas ksba ksbc ksbp ksbs ksca kscb ksce ksck kscs ksea ksec ksee ksek ksep kska kskb kske kskk ksks kspa kspb kspc kspe kspk ksps kssa ksse ksss paak paap paas paba paca pace pack pacs paea paec paep paes paka pake paks papa papb pape papp paps pasa pasc pase pask pasp pass pbac pbcc pbpa pbpk pbsa pbsp pcaa pcae pcap pcas pcba pcbc pcbs pcca pccc pcce pccs pcea pcep pcks pcpb pcpp pcps pcsa pcse peab peac peak peap peas peba peca pece peck pecs peec peek peep pees peka peke pekk pepa pepe peps pesa pese pess pkcs ppac ppap ppcc ppcs pppa pppp ppps ppss psac psap psas psca pseb psec pspp psps pssa pssc psse sa-c saab saac saae saak saap saas saba sabb sabc sabe sabs saca sacc sace sack sacs saeb saek saes saka sakb sake sakk saks sapa sape sapp saps sasa sasc sase sask sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbse sbsp scaa scab scac scak scap scas scba sccc scce sccp sccs scea scec scee scep sck- scpa scpb scpe scps scsa scsc se-c se-e se-k se-s seaa seab seac seak seap seas seba sebe sebs sec- seca secc sece seck secs seea seeb seec seek seep sees seka seke sekk sepa sepe sepp seps sesa sesc sese sess skab skac skap skee skep skes skpc skss sp-a spac spae spak spap spas spca spcc spcs spea speb spec spee spek spes spke spps spsa spse spsp spss ssaa ssab ssac ssap ssas ssca sscc ssce sscp sscs ssec ssee ssep sses sspa sspc sspe ssps sssa sssb sssc ssss