a-ak a-be aaaa aaab aaac aaad aaae aaal aaap aaba aabb aabc aabd aabl aabp aaca aacb aacc aacd aace aack aacl aacp aada aadc aade aaea aaec aaep aaka aake aala aalc aald aale aall aapa aapc aapl abaa abab abac abad abae abak abal abap abb- abba abbb abbe abca abcb abcc abcd abcl abcp abda abec abed abee abel abla able abpa abpc abpd abpp acaa acab acac acad acae acap acba acbl acca accc accd acce accp acda acdb acdc acde acdp ace- acea acec aced acek acel ackd acke acla aclc acle acpa acpd acpe adaa adab adac adad adae adak adal adap adba adbc adcc adda addc addd adde addl adea adeb adee adel adle adp- aeac aeap aecb aecl aede aeka aela aelc aelp akaa akae akal akap akca aked akee akel akka akle al-p alaa alac alad alae alak alal alap alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alek alep alk- alka alkb alkd alke all- alla alle alll alpa alpe alpl apac apak apal apap apba apca apcb apcc apcd apda apdd apea apec aped apel apep apke apl- apla aple aplp appa appc appd appl baaa baad baak baal baba babb babe bac- baca bacc bace back bada badb badd bade baed baek bael bak- baka bake bakl bala balc bald bale balk ball bapa bapc bape bapp bbad bbbb bbdd bbeb bblb bcaa bcap bcbc bcbp bcca bccc bccl bcda bcde bcec bcpl bcpp bdbc bddc bdle bdpc bead beak beal beap beba bebb bebe beca beck beda bede bedl beeb beed beek beel beep beka beke bela beld bele belk bell belp blaa blab blac blad blae blak bldc blea bleb bled blee blek blkb blkd bpcp bpda bpea bpel c-cd caaa caab caac caal caap caba cabe cac- caca cacc cace cack cada cadc cadd cade caec caka cake cala calc cald cale calk call calp capa capb capc capd cape capp cbac cbal cbbc cbca cbcc cbce cbcl cbcp cbdb cbdc cbea cbec cbee cbka cbkl cblb cblc cbpc cbpp ccaa ccab ccac ccad ccap ccba ccbc ccca cccb cccc cccl cccp ccdc ccdp cced ccee ccel ccla cclc ccpa ccpe ccpl ccpp cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceba cebp cec- ceca cece cecp ceda cedd cede ceeb ceec ceel ceke cel- cela celc cele cell cepa cepc cepe cepp ckac ckbc ckbe ckck ckcl ckpc clab clad clap clcd cldc clea clec cled clee clek clep clpb clpp cpaa cpac cpad cpap cpbc cpca cpce cpdl cpea cpeb cpep cplc cppa cppd daab daad daae daal daap daba dabb dabp daca dace dada dade daeb daka dake dala dale dalk dall dapa dape dapp dbcc dbcp dblp dbpc dbpd dcbc dcca dccb dccc dccl dccp dcdb dcpl dddd ddlc deac dead deae deak deal deap deba debe dec- deca decc decd dece deck decl deda dedd dede deeb deed deek deel deep dek- deka deke dela deld dele delk dell delp depa depc depe depp dkba dkdc dlab dlbd dpaa dpac dpbc dpcp dpll dppa dppc e-cl e-la eaba eaca eacc eada eadb eadd eadp eaec eala ealc eald eale eapc eapp ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced ecka ecla ecpa ecpd ecpp edac edad edca edda eddc edde eddp ede- edea edel edla edle eeca eede eeea eeee eeka eeke eele eka- ekab ekeb eked ekek ekka ekpe el-b el-p elab elac elad elal elba elbe elca elcb elce elda elde elea elec eled elee elek elka elke ella elle elpe epaa epac epad epcc epec epee eple epll eppa eppc eppp kaaa kaab kaak kaal kaap kaba kabb kabc kabd kabe kacb kacc kacd kace kacl kacp kad- kada kadd kade kadl kael kaep kaka kakc kake kakk kala kalb kalc kald kale kalk kall kalp kap- kapa kapc kape kapl kapp kbaa kbab kbac kbad kbae kbak kbal kbap kbba kbbb kbbc kbbd kbbe kbbk kbbl kbca kbcb kbce kbck kbcl kbdb kbde kbdl kbeb kbec kbed kbee kbek kbel kbkb kbkk kbkl kbla kblb kbld kble kbll kblp kbpa kbpc kbpe kbpk kcaa kcab kcac kcad kcal kcap kcba kcbc kcbd kcbk kcbl kcca kccb kccc kccd kcck kccl kcda kcdc kcdd kcea kceb kcec kced kcee kcel kcep kckc kckk kckl kcla kclc kcle kclk kcll kcpa kcpc kcpl kdaa kdab kdac kdad kdae kdak kdal kdap kdbb kdbl kdca kdcc kdcd kdce kddb kddc kddd kddk kddl kdeb kdec kdel kdep kdka kdkb kdkd kdkk kdla kdlb kdlc kdld kdll kdlp kea- kead keak keal keap keba kebb kebc kebe keca keck keda kedb kedc kedd kede kedp keed keek keel keep keka kekb kekc keke kekl kela keld kele kelk kell kelp kep- kepa kepc kepd kepe kkaa kkac kkal kkap kkba kkbb kkbd kkbe kkbl kkcb kkcd kkck kkcl kkda kkdc kkdd kkdl kkea kked kkkk kklb kklc kkld kkll kkpc kkpk kkpl klaa klab klac klad klak klal klap klbb klbc klbd klbe klbl klca klcb klcc klcd klce klck klcl kldc kldd klde klea kleb klec kled klee klek klep klka klkc klkk klkl klla kllb kllc klle kllk kllp klpc klpd kpac kpad kpae kpak kpal kpba kpbb kpbd kpbe kpbl kpcc kpcl kpda kpdb kpdc kpek kpel kpke kpkk kpkl kpla kplc kpld kplk kppc kppd kppk kppl kppp laaa laac laad laak laal laap laba labe laca lacc lace lack lacl lacp lada ladd lade ladp lael laka lake lala lald lale lall lapa lapb lapc lapd lape lapp lbcc lcac lcad lcbc lcca lccc lcce lcdd lcdp lcpa lcpc lcpd lcpl lddp ldpc leaa lead leak leal leap leba lebd leca lece leck leda lede leea leed leek leel leep leka leke lekk lela lele lell lepa lepe lepp lkab lkal llcc lldb lldc lldp lllc llll lpac lpda lpec