-al a-a a-b a-c aaa aab aac aad aae aak aal aav ab- aba abb abc abd abe abk abl abv ac- aca acb acc acd ace ack acl acv ad- ada adb adc add ade adk adl adv aea aeb aec aed aee aek ael aev aka akb akc akd ake akk akl akv al- ala alb alc ald ale alk all alv av- ava avb avc avd ave avk avl baa bab bac bad bae bak bal bav bba bbb bbc bbd bbe bbk bbl bca bcb bcc bcd bce bck bcl bcv bda bdb bdc bdd bde bdk bdl bdv be- bea beb bec bed bee bek bel bev bka bkb bkc bke bkk bkl bkv bla blb blc bld ble blk bll blv bva bvb bvc bvd bve bvk bvl bvv c-- caa cab cac cad cae cak cal cav cba cbb cbc cbd cbe cbk cbl cbv cca ccb ccc ccd cce cck ccl ccv cda cdb cdc cdd cde cdk cdl cdv ce- cea ceb cec ced cee cek cel cev cka ckb ckc ckd cl- cla clb clc cld cle clk cll clv cva cvb cvc cvd cve cvk cvl cvv daa dab dac dad dae dak dal dav dba dbb dbc dbd dbe dbk dbl dbv dca dcb dcc dcd dce dck dcl dcv dda ddb ddc ddd dde ddk ddl de- dea deb dec ded dee dek del dev dka dkb dkc dke dkk dkl dl- dla dlb dlc dld dle dlk dll dlv dva dvb dvc dvd dve dvk dvl eaa eab eac ead eae eak eal eav eba ebb ebc ebd ebe ebk ebl ebv ec- eca ecb ecc ecd ece eck ecl ecv ed- eda edb edc edd ede edk edl eea eeb eec eed eee eek eel eev eka ekb ekc ekd eke ekl ekv ela elb elc eld ele elk ell elv eva evb evc evd eve evl evv ka- kaa kab kac kad kae kak kal kav kba kbb kbc kbd kbe kbk kbl kca kcb kcc kcd kce kck kcl kda kdb kdc kde kdk kdl ke- kea keb kec ked kee kek kel kev kkb kkc kke kkk kkl kkv kl- kla klb klc kld klv kva kvb kvk kvv la- laa lab lac lad lae lak lal lav lba lbb lbc lbd lbe lbk lbl lbv lca lcb lcc lcd lce lck lcl lcv lda ldb ldc ldd lde ldk ldl ldv lea leb lec led lee lek lel lev lka lkb lkl lla llb llc lld lle llk lll llv lva lvb lvc lvd lve lvl lvv v-a v-e vaa vab vac vad vae vak val vav vba vbc vbd vbk vbl vbv vca vcc vcd vce vcl vdb vdc vdd vde vdk vdl vdv vea veb vec ved vee vek vel vka vkb vl- vla vlb vlc vld vle vlk vll vlv vva vvb vvc vvv

-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