-al a-a a-b a-c a-t aaa aab aac aad aae aak aal aat ab- aba abb abc abd abe abk abl abt ac- aca acb acc acd ace ack acl act ad- ada adb adc add ade adk adl adt aea aeb aec aed aee aek ael aet aka akb akc akd ake akk akl al- ala alb alc ald ale alk all alt at- ata atb atc atd ate atl att baa bab bac bad bae bak bal bat bba bbb bbc bbd bbe bbk bbl bbt bca bcb bcc bcd bce bck bcl bct bda bdb bdc bdd bde bdk bdl bdt be- bea beb bec bed bee bek bel bet bka bkb bkc bke bkk bkl bkt bla blb blc bld ble blk bll blt bta btb btc btd bte btk btl btt c-- caa cab cac cad cae cak cal cat cba cbb cbc cbd cbe cbk cbl cbt cca ccb ccc ccd cce cck ccl cct cda cdb cdc cdd cde cdk cdl cdt ce- cea ceb cec ced cee cek cel cet cka ckb ckc ckd ckt cl- cla clb clc cld cle clk cll clt cta ctb ctc ctd cte ctk ctl ctt daa dab dac dad dae dak dal dat dba dbb dbc dbd dbe dbk dbl dbt dca dcb dcc dcd dce dck dcl dct dda ddb ddc ddd dde ddk ddl ddt de- dea deb dec ded dee dek del det dka dkb dkc dke dkk dkl dkt dl- dla dlb dlc dld dle dlk dll dlt dta dtb dtc dtd dte dtk dtl dtt eaa eab eac ead eae eak eal eat eba ebb ebc ebd ebe ebk ebl ebt ec- eca ecb ecc ecd ece eck ecl ect ed- eda edb edc edd ede edk edl edt eea eeb eec eed eee eek eel eet eka ekb ekc ekd eke ekl ekt ela elb elc eld ele elk ell elt eta etb etc etd ete etk etl ett k-t ka- kaa kab kac kad kae kak kal kat kba kbb kbc kbd kbe kbk kbl kca kcb kcc kcd kce kck kcl kct kda kdb kdc kde kdk kdl kdt ke- kea keb kec ked kee kek kel ket kkb kkc kke kkk kkl kkt kl- kla klb klc kld klt kta ktb ktc kte ktk ktl ktt la- laa lab lac lad lae lak lal lat lba lbb lbc lbd lbe lbk lbl lbt lca lcb lcc lcd lce lck lcl lct lda ldb ldc ldd lde ldk ldl ldt lea leb lec led lee lek lel let lka lkb lkl lkt lla llb llc lld lle llk lll llt lta ltb ltc ltd lte ltk ltl ltt taa tab tac tad tae tak tal tat tba tbb tbc tbd tbe tbk tbl tbt tca tcb tcc tcd tce tck tcl tct tda tdb tdc tdd tde tdk tdl tdt te- tea teb tec ted tee tek tel tet tka tkb tkc tke tkk tkl tkt tla tlc tld tle tlk tll tlt tta ttb ttc ttd tte ttk ttl ttt

a-ak a-be aaaa aaab aaac aaad aaae aaal aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aace aack aacl aact aada aadc aade aadt aaea aaec aaka aake aala aalc aald aale aall aata aatc aatk aatt abaa abab abac abad abae abak abal abat abb- abba abbb abbe abbt abca abcb abcc abcd abcl abct abda abec abed abee abel abet abla able abta ac-t acaa acab acac acad acae acat acba acbl acca accc accd acce acct acda acdb acdc acde acdt ace- acea acec aced acek acel acet ackd acke acla aclc acle acta actc acte actl actt adaa adab adac adad adae adak adal adat adba adbc adcc adda addc addd adde addl adea adeb adee adel adet adle adta aeac aecb aecl aect aede aedt aeka aela aelc aeta aetc aett akaa akae akal akca aked akee akel akka akle akte alaa alac alad alae alak alal alat alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alek alet alk- alka alkb alkd alke all- alla alle alll alta alte at-l at-t ataa atab atac atad atae atak atal atat atca atcc atck atcl atdt atea atec ated atee atel atka atkt atla atle atta atte baaa baad baak baal baat baba babb babe bac- baca bacc bace back bact bada badb badd bade baed baek bael bak- baka bake bakl bakt bala balc bald bale balk ball balt bata batc bate batt bbad bbbb bbdd bbeb bbet bblb bcaa bcat bcbc bcca bccc bccl bcda bcde bcec bcet bctc bdbc bddc bdle bead beak beal beat beba bebb bebe beca beck beda bede bedl beeb beed beek beel beet beka beke bela beld bele belk bell belt beta betc bete bett blaa blab blac blad blae blak blat blbt bldc blea bleb bled blee blek blet blkb blkd btaa btcc btcl btdt btec btek btla bttb c-cd caaa caab caac caal caat caba cabe cac- caca cacc cace cack cada cadc cadd cade caec caka cake cala calc cald cale calk call calt cat- cata catb catc catd cate catt cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbdb cbdc cbea cbec cbee cbet cbka cbkl cblb cblc cbta cbtc cbtl ccaa ccab ccac ccad ccat ccba ccbc ccca cccb cccc cccl ccdc cced ccee ccel ccla cclc cctb cctc cctl cctt cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceat ceba cec- ceca cece cect ceda cedd cede cedt ceeb ceec ceel ceke cel- cela celc cele cell celt cet- ceta cete ckac ckat ckbc ckbe ckck ckcl cktb clab clad clat clcd cldc clea clec cled clee clek clet cltb cltc ctab ctae ctal ctba ctca ctec ctle ctta daab daad daae daal daba dabb dabt daca dace dact dada dade daeb daka dake dala dale dalk dall dalt data date datt dbcc dbtt dcbc