a-be a-ii aaaa aaab aaac aaae aaai aaal aaap aaba aabb aabc aabi aabl aabp aaca aacb aacc aace aaci aacl aacp aaea aaec aaep aaib aaic aaii aala aalc aale aali aall aapa aapc aapi aapl abaa abab abac abae abai abal abap abb- abba abbb abbe abbi abca abcb abcc abci abcl abcp abec abee abel abia abib abic abie abil abla able abpa abpc abpi abpp acaa acab acac acae acai acap acba acbl acca accc acce acci accp ace- acea acec acel aci- acia acic acie acip acla aclc acle acli acpa acpe acpi aeac aeap aebi aecb aeci aecl aela aelc aelp aiai aiba aibl aica aicc aice aicp aiea aiee aiel aiia aiib aiic aila aile aili aipa aipe aipi al-p alaa alac alae alai alal alap alb- alba albc albe albi alca alcc alce alea alec alee alep ali- alia alib alie alii alil alip all- alla alle alli alll alpa alpe alpi alpl apac apai apal apap apba apca apcb apcc apea apec apel apep api- apia apic apie apip apl- apla aple aplp appa appc appl ba-i baaa baal baba babb babe babi bac- baca bacc bace baci bael baia baib baic baie bail bala balc bale bali ball bapa bapc bape bapi bapp bbbb bbci bbeb bblb bcaa bcap bcbc bcbp bcca bccc bcci bccl bcec bcia bcie bcpl bcpp beal beap beba bebb bebe bebi beca beci beeb beel beep beia beic beil bela bele beli bell belp bial biap biba bibb bibe bibi bibl bica bicc bice bici bieb biel bila bile bili bill bipa bipp blaa blab blac blae blea bleb blee blei blic blip bpai bpcp bpea bpel caaa caab caac caal caap caba cabe cabi cac- caca cacc cace caci caec caei caia caib caic cail caip cala calc cale cali call calp capa capb capc cape capi capp cbac cbal cbbc cbca cbcc cbce cbcl cbcp cbea cbec cbee cbia cblb cblc cbpc cbpp ccaa ccab ccac ccai ccap ccba ccbc ccca cccb cccc ccci cccl cccp ccee ccel ccic ccii ccil ccip ccla cclc ccli ccpa ccpe ccpl ccpp ceac ceal ceba cebp cec- ceca cece ceci cecp ceeb ceec ceel ceil ceip cel- cela celc cele celi cell cepa cepc cepe cepp ciaa cial ciba cibc cibe cibi cica cicc cici ciee ciel ciia ciii cila cili cill cilp cipa cipp clab clai clap clea clec clee clei clep clib clic clii clip clpb clpp cpaa cpac cpap cpbc cpca cpce cpea cpeb cpep cpia cpic cplc cppa e-cl e-la eaba eaca eacc eaec eala ealc eale eapc eapp ebac ebal ebba ebbc ebcc ebel ebic ebla ebli ecaa ecac ecai ecal ecbc ecbe ecca eccb eccc ecce ecci eccl ecib ecil ecip ecla ecpa ecpp eeca eeea eeee eele eica eiec eiei eila eile el-b el-p elab elac elai elal elba elbe elbi elca elcb elce elea elec elee elia elic elie elil ella elle elli elpe elpi epaa epac epcc epci epec epee epi- epia epic epie epil epip eple epll eppa eppc eppp i-be iaaa iaac iaai iaal iaap iaba iaca iacc iacp iaea iaec iaep iaia iala iale iall iapa iapp ibac ibca ibea ibec ibia ibie ible icaa icab icac icai ical icap icbc icbp icca iccb iccc icci iccl iccp icea icec icee icel icle icll iclp icpa icpc ieac iecc ieie iele iepa iiac iica iiie iiii iila iipa ilac ilal ilbc ilca ilce ile- ilea ilec ilia ilic ilie ill- illa ille illi illp ilpa ilpe ipac ipba ipca ipcc ipce ipea ipec ipie ipil ippa ippc laaa laac laal laap laba labe labi laca lacc lace laci lacl lacp lael laia laic laie lail laip lala lale lali lall lapa lapb lapc lape lapi lapp lbcc lbia lcac lcbc lcca lccc lcce lcia lcpa lcpc lcpl leaa leal leap leba leca lece leea leel leep leia leib leic leie leil lela lele leli lell lepa lepe lepi lepp liac liba libc libe lica lice lieb liel liep liia liii lila lilb lile lili lill lip- lipa lipb lipc lipe lipi lipl lipp llcc lllc llll lpac lpec lpla lppl paal paap paba paca pace paci paea paec paep paia paib paie pail paip pala pale pali pall palp papa papb pape papi papp pbac pbcc pbil pbpa pcaa pcae pcap pcba pcbc pcca pccc pcce pccl pcea pcep pcia pcip pcll pcpb pcpp peab peac peai peal peap peba pebl peca pece peci pecl peec peel peep peia peil peip pel- pela pelb pele pell pepa pepe pepi piai pial pibb pibi pica picc pice pici piea piel piep piia piip pil- pila pile pili pill pipa pipe pipi pipp plaa plab plac plai plap plcc plce ple- plea pleb plec plee plei plib plie plip plpa plpp ppac ppal ppap ppcc ppci ppib ppic ppie pple ppli pppa pppp