-al a-a a-b a-c aaa aab aac aae aag aak aal ab- aba abb abc abe abg abk abl ac- aca acb acc ace acg ack acl aea aeb aec aee aeg aek ael ag- aga agb agc age agg agk agl aka akb akc ake akg akk akl al- ala alb alc ale alg alk all baa bab bac bae bag bak bal bba bbb bbc bbe bbg bbk bbl bca bcb bcc bce bcg bck bcl be- bea beb bec bee beg bek bel bga bgb bgc bge bgg bgk bgl bka bkb bkc bke bkg bkk bkl bla blb blc ble blg blk bll c-- caa cab cac cae cag cak cal cba cbb cbc cbe cbg cbk cbl cca ccb ccc cce ccg cck ccl ce- cea ceb cec cee ceg cek cel cga cgb cgc cge cgg cgl cka ckb ckc cl- cla clb clc cle clg clk cll eaa eab eac eae eag eak eal eba ebb ebc ebe ebg ebk ebl ec- eca ecb ecc ece ecg eck ecl eea eeb eec eee eeg eek eel ega egb egc ege egg egl eka ekb ekc eke ekg ekl ela elb elc ele elg elk ell gaa gab gac gae gag gak gal gba gbc gbe gbg gbk gbl gca gcb gcc gce gcg gck gcl ge- gea geb gec gee geg gek gel gga ggb ggc ggg gka gkb gla glb glc gle glg glk gll ka- kaa kab kac kae kag kak kal kba kbb kbc kbe kbk kbl kca kcb kcc kce kcg kck kcl ke- kea keb kec kee keg kek kel kga kgb kgc kgl kkb kkc kke kkk kkl kl- kla klb klc klg la- laa lab lac lae lag lak lal lba lbb lbc lbe lbg lbk lbl lca lcb lcc lce lcg lck lcl lea leb lec lee leg lek lel lga lgb lgc lge lgg lgk lgl lka lkb lkg lkl lla llb llc lle llg llk lll

a-ak a-be aaaa aaab aaac aaae aaal aaba aabb aabc aabl aaca aacb aacc aace aack aacl aaea aaec aage aaka aake aala aalc aale aall abaa abab abac abae abag abak abal abb- abba abbb abbe abca abcb abcc abcl abec abee abel abgl abla able acaa acab acac acae acag acba acbl acca accc acce ace- acea acec acek acel acga acke acla aclc acle aeac aecb aecl aega aeka aela aelc agac agag agal agba agca agcc agce agea agee agel agga agge agla aglc agle akaa akae akal akca akee akeg akel akka akle alaa alac alae alag alak alal alb- alba albc albe alca alcc alce alea alec alee aleg alek alg- alga alge alk- alka alkb alke all- alla alle alll baaa baak baal baba babb babe bac- baca bacc bace back baek bael baga bage bagg bak- baka bake bakl bala balc bale balk ball bbbb bbeb bbga bblb bcaa bcbc bcbg bcca bccc bccl bcec beag beak beal beba bebb bebe beca beck beeb beeg beek beel bega begg beka beke bela bele belg belk bell bgca blaa blab blac blae blag blak blea bleb blee bleg blek blkb caaa caab caac caal caba cabe cabg cac- caca cacc cace cack caec caga cage cagg caka cake cala calc cale calk call cbac cbal cbbc cbca cbcc cbce cbcl cbea cbec cbee cbga cbgb cbka cbkg cbkl cblb cblc ccaa ccab ccac ccag ccba ccbc ccca cccb cccc cccl ccee ccel ccga ccgc ccla cclc cclg ceac ceal ceba cec- ceca cece ceeb ceec ceel cege ceke cel- cela celc cele cell cgac cgal cgcc cgcg cgel ckac ckbc ckbe ckck ckcl ckga ckgl cklg clab clag clea clec clee cleg clek clkg e-cl e-la eaba eaca eacc eaec eaga eage eagl eala ealc eale ebac ebal ebba ebbc ebcc ebel ebla ecaa ecac ecal ecbc ecbe ecca eccb eccc ecce eccl ecka ecla eeca eeea eeee eega eeka eeke eele egaa egae egal egba egbe egcc egcg egea egec egee egel eggb egge eglc egle eka- ekab ekeb ekek ekka el-b elab elac elal elba elbe elca elcb elce elea elec elee elek elgg elka elke ella elle gaal gaba gabb gabe gabl gace gack gaea gaec gael gaga gage gagg gala gale galk gall gbag gc-c gcaa gcal gcbc gccc gclc geab geal geba gebe geca gece geck geek geel gege gegg gegl gela gelb gele gelg gell ggcl gggg glaa glab glak glbc glcc glce gleb glee gleg glge kaaa kaab kaag kaak kaal kaba kabb kabc kabe kabg kacb kacc kace kacl kael kag- kaga kagb kagc kage kagg kagl kaka kakc kake kakk kala kalb kalc kale kalk kall kbaa kbab kbac kbae kbak kbal kbba kbbb kbbc kbbe kbbg kbbk kbbl kbca kbcb kbce kbck kbcl kbeb kbec kbee kbek kbel kbga kbgb kbge kbgg kbgl kbkb kbkg kbkk kbkl kbla kblb kble kblg kbll kcaa kcab kcac kcal kcba kcbc kcbk kcbl kcca kccb kccc kcck kccl kcea kceb kcec kcee kceg kcel kcgc kcgl kckc kckk kckl kcla kclc kcle kclk kcll kea- keag keak keal keba kebb kebc kebe keca kecg keck keek keel kega kege kegg kegk kegl keka kekb kekc keke kekl kela kele kelg kelk kell kgab kgac kgak kgal kgba kgbb kgbc kgcb kgcc kgce kgcl kgeb kgec kgga kggg kggl kgkl kgla kglb kgle kglk kkaa kkac kkag kkal kkba kkbb kkbe kkbg kkbl kkcb kkck kkcl kkea kkeg kkgb kkgl kkkk kklb kklc kkll klaa klab klac klag klak klal klbb klbc klbe klbl klca klcb klcc klce klck klcl klea kleb klec klee klek klga klgb klgl klka klkc klkk klkl klla kllb kllc klle kllk laaa laac laag laak laal laba labe laca lacc lace lack lacl lael lag- laga lage lagg laka lake lala lale lall lbcc lcac lcbc lcca lccc lcce leaa leag leak leal leba leca lece leck leea leek leel lega lege legg leka leke lekk lela lele