-vac a-ak a-be aaaa aaab aaac aaad aaae aaal aaav aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aack aacl aacv aada aadc aade aaea aaec aaev aaka aake aala aalc aald aale aall aava abaa abab abac abad abae abak abal abb- abba abbb abbe abca abcb abcc abcd abcl abda abec abed abee abel abla able ablv abva abvd acaa acab acac acad acae acba acbl acca accc accd acce acda acdb acdc acde ace- acea acec aced acek acel acev ackd acke acla aclc acle acvv adaa adab adac adad adae adak adal adba adbc adcc adda addc addd adde addl adea adeb adee adel adle advb aeac aecb aecl aede aeka aela aelc aeva akaa akae akal akca aked akee akel akka akle alaa alac alad alae alak alal alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alek alev alk- alka alkb alkd alke all- alla alle alll alva avab aval avcc avce avda avea avec avel avlb avva 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 bava bave bbad bbbb bbdd bbeb bblb bcaa bcbc bcca bccc bccl bcda bcde bcec bdav bdbc bddc bdle bead beak beal beav beba bebb bebe beca beck beda bede bedl beeb beed beek beel beka beke bela beld bele belk bell blaa blab blac blad blae blak bldc blea bleb bled blee blek blkb blkd blvd c-cd caaa caab caac caal caba cabe cac- caca cacc cace cack cada cadc cadd cade caec caka cake cala calc cald cale calk call cava cave cbac cbal cbbc cbca cbcc cbce cbcl cbdb cbdc cbea cbec cbee cbka cbkl cblb cblc cbva cbvb cbve ccaa ccab ccac ccad ccba ccbc ccca cccb cccc cccl cccv ccdc cced ccee ccel ccla cclc cclv cd-e cdaa cdac cdad cdba cdda cddb cddl cdec cdlv cdvd ceac cead ceal ceba cec- ceca cece ceda cedd cede ceeb ceec ceel ceke cel- cela celc cele cell ceva ckac ckbc ckbe ckck ckcl ckcv ckvl clab clad clav clcd cldc clea clec cled clee clek cvac cvca cvcc daab daad daae daal daba dabb daca dace dada dade daeb daka dake dala dale dalk dall dava dave dbcc dcbc dcca dccb dccc dccl dccv dcdb dclv dcvd dddd ddlc deac dead deae deak deal deba debe dec- deca decc decd dece deck decl deda dedd dede deeb deed deek deel deev dek- deka deke dela deld dele delk dell deva deve dkba dkdc dlab dlbd dvda dvla dvvl e-cl e-la eaba eaca eacc eada eadb eadd eaec eala ealc eald eale eave ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced ecka ecla edac edad edca edda eddc edde ede- edea edel edla edle edve eeca eede eeea eeee eeka eeke eele eelv eeva eka- ekab ekeb eked ekek ekka el-b elab elac elad elal elba elbe elca elcb elce elda elde elea elec eled elee elek elev elka elke ella elle elva elve evac evae eval evdb evea evel evla evvk kaaa kaab kaak kaal kaba kabb kabc kabd kabe kacb kacc kacd kace kacl kacv kad- kada kadd kade kadl kadv kael kaka kakc kake kakk kala kalb kalc kald kale kalk kall kalv kava kavb kave kavl kavv kbaa kbab kbac kbad kbae kbak kbal kbba kbbb kbbc kbbd kbbe kbbk kbbl kbca kbcb kbce kbck kbcl kbdb kbde kbdl kbdv kbeb kbec kbed kbee kbek kbel kbev kbkb kbkk kbkl kbkv kbla kblb kbld kble kbll kblv kbva kbvb kbvc kcaa kcab kcac kcad kcal kcav kcba kcbc kcbd kcbk kcbl kcca kccb kccc kccd kcck kccl kccv kcda kcdc kcdd kcdv kcea kceb kcec kced kcee kcel kckc kckk kckl kckv kcla kclc kcle kclk kcll kclv kcvd kcvk kcvl kcvv kdaa kdab kdac kdad kdae kdak kdal kdav kdbb kdbl kdbv kdca kdcc kdcd kdce kddb kddc kddd kddk kddl kdeb kdec kdel kdka kdkb kdkd kdkk kdla kdlb kdlc kdld kdll kdva kdvb kdvl kdvv kea- kead keak keal keba kebb kebc kebe keca keck keda kedb kedc kedd kede keed keek keel keka kekb kekc keke kekl kela keld kele kelk kell keva keve kkaa kkac kkal kkba kkbb kkbd kkbe kkbl kkcb kkcd kkck kkcl kkda kkdc kkdd kkdl kkdv kkea kked kkkk kklb kklc kkld kkll kklv kkvv klaa klab klac klad klak klal klav klbb klbc klbd klbe klbl klca klcb klcc klcd klce klck klcl kldc kldd klde klea kleb klec kled klee klek klka klkc klkk klkl klkv klla kllb kllc klle kllk kllv klvb klve klvk klvl klvv kvab kvak kval kvbc kvbl kvcb kvcc kvce kvck kvcl kvcv kvda kvea kvec kvel kvkl kvlb kvlc kvld kvle kvlv kvvl kvvv laaa laac laad laak laal laba labe laca lacc lace lack lacl lada ladd lade lael laka lake lala lald lale lall lava lavc lave lbcc lcac lcad lcbc lcca lccc lcce lcdd lddv leaa lead leak leal leba lebd leca lece leck leda lede leea leed leek leel leka leke lekk lela lele lell lev- leva levc leve lkab lkal llcc lldb lldc lllc llll lvad lvcc lvea vaad vaal vaca vace vack vada vade vaka vake vala vald vale valk vall vava vbcc vcal vdcc vdec veak veal veba vecc veck veda vedc vede veel veka veke vel- vela veld vele vell veve vlab vlad vlba vlcc vldb vldl vvvv