-al a-a a-b a-c aaa aab aac aad aae aag aak aal ab- aba abb abc abd abe abg abk abl ac- aca acb acc acd ace acg ack acl ad- ada adb adc add ade adg adk adl aea aeb aec aed aee aeg aek ael ag- aga agb agc agd age agg agk agl aka akb akc akd ake akg akk akl al- ala alb alc ald ale alg alk all baa bab bac bad bae bag bak bal bba bbb bbc bbd bbe bbg bbk bbl bca bcb bcc bcd bce bcg bck bcl bda bdb bdc bdd bde bdg bdk bdl be- bea beb bec bed bee beg bek bel bga bgb bgc bgd bge bgg bgk bgl bka bkb bkc bke bkg bkk bkl bla blb blc bld ble blg blk bll c-- caa cab cac cad cae cag cak cal cba cbb cbc cbd cbe cbg cbk cbl cca ccb ccc ccd cce ccg cck ccl cda cdb cdc cdd cde cdg cdk cdl ce- cea ceb cec ced cee ceg cek cel cga cgb cgc cgd cge cgg cgl cka ckb ckc ckd cl- cla clb clc cld cle clg clk cll daa dab dac dad dae dag dak dal dba dbb dbc dbd dbe dbg dbk dbl dca dcb dcc dcd dce dcg dck dcl dda ddb ddc ddd dde ddg ddk ddl de- dea deb dec ded dee deg dek del dga dgc dgd dge dgg dgk dgl dka dkb dkc dke dkg dkk dkl dl- dla dlb dlc dld dle dlg dlk dll eaa eab eac ead eae eag eak eal eba ebb ebc ebd ebe ebg ebk ebl ec- eca ecb ecc ecd ece ecg eck ecl ed- eda edb edc edd ede edg edk edl eea eeb eec eed eee eeg eek eel ega egb egc egd ege egg egl eka ekb ekc ekd eke ekg ekl ela elb elc eld ele elg elk ell g-d gaa gab gac gad gae gag gak gal gba gbc gbd gbe gbg gbk gbl gca gcb gcc gcd gce gcg gck gcl gda gdb gdc gdd gde gdk gdl ge- gea geb gec ged gee geg gek gel gga ggb ggc ggd ggg gka gkb gkd gla glb glc gld gle glg glk gll ka- kaa kab kac kad kae kag kak kal kba kbb kbc kbd kbe kbk kbl kca kcb kcc kcd kce kcg kck kcl kda kdb kdc kde kdg kdk kdl ke- kea keb kec ked kee keg kek kel kga kgb kgc kgd kgl kkb kkc kke kkk kkl kl- kla klb klc kld klg la- laa lab lac lad lae lag lak lal lba lbb lbc lbd lbe lbg lbk lbl lca lcb lcc lcd lce lcg lck lcl lda ldb ldc ldd lde ldg ldk ldl lea leb lec led lee leg lek lel lga lgb lgc lgd lge lgg lgk lgl lka lkb lkg lkl lla llb llc lld lle llg llk lll

a-ak a-be aaaa aaab aaac aaad aaae aaal aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aack aacl aada aadc aade aaea aaec aage aaka aake aala aalc aald aale aall abaa abab abac abad abae abag abak abal abb- abba abbb abbe abca abcb abcc abcd abcl abda abec abed abee abel abgd abgl abla able acaa acab acac acad acae acag acba acbl acca accc accd acce acda acdb acdc acde ace- acea acec aced acek acel acga ackd acke acla aclc acle adaa adab adac adad adae adag adak adal adba adbc adcc adda addc addd adde addl adea adeb adee adel adle aeac aecb aecl aede aega aeka aela aelc agac agad agag agal agba agca agcc agce agda agde agea aged agee agel agga agge agla aglc agle akaa akae akal akca aked akee akeg akel akka akle alaa alac alad alae alag alak alal alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee aleg alek alg- alga alge alk- alka alkb alkd alke all- alla alle alll baaa baad baak baal baba babb babe bac- baca bacc bace back bada badb badd bade baed baek bael baga bage bagg bak- baka bake bakl bala balc bald bale balk ball bbad bbbb bbdd bbeb bbga bblb bcaa bcbc bcbg bcca bccc bccl bcda bcde bcec bdbc bddc bdle bead beag beak beal beba bebb bebe beca beck beda bede bedl beeb beed beeg beek beel bega begg beka beke bela beld bele belg belk bell bgca bkgd blaa blab blac blad blae blag blak bldc bldg blea bleb bled blee bleg blek blkb blkd c-cd caaa caab caac caal caba cabe cabg cac- caca cacc cace cack cada cadc cadd cade caec caga cage cagg caka cake cala calc cald cale calk call cbac cbal cbbc cbca cbcc cbce cbcl cbdb cbdc cbea cbec cbee cbga cbgb cbka cbkg cbkl cblb cblc ccaa ccab ccac ccad ccag ccba ccbc ccca cccb cccc cccl ccdc cced ccee ccel ccga ccgc ccla cclc cclg cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceba cec- ceca cece ceda cedd cede ceeb ceec ceel cege ceke cel- cela celc cele cell cgac cgal cgcc cgcg cged cgel ckac ckbc ckbe ckck ckcl ckga ckgl cklg clab clad clag clcd cldc clea clec cled clee cleg clek clkg daab daad daae daag daal daba dabb daca dace dada dade daeb daga dage dagg daka dake dala dale dalk dall dbag dbcc dcbc dcca dccb dccc dccl dcdb dddd ddlc deac dead deae deak deal deba debe dec- deca decc decd dece deck decl deda dedd dede deeb deed deeg deek deel dega dege dek- deka deke dela deld dele delk dell dgac dgca dgeg dgge dgka dgkb dgkd dgkg dglc dkba dkdc dlab dlbd dleg e-cl e-la eaba eaca eacc eada eadb eadd eaec eaga eage eagl eala ealc eald eale ebac ebal ebba ebbc ebcc ebed ebel