-al a-a a-b a-c aaa aab aac aae aak aal aas ab- aba abb abc abe abk abl abs ac- aca acb acc ace ack acl acs aea aeb aec aee aek ael aes aka akb akc ake akk akl aks al- ala alb alc ale alk all als as- asa asb asc ase ask asl ass baa bab bac bae bak bal bas bba bbb bbc bbe bbk bbl bbs bca bcb bcc bce bck bcl bcs be- bea beb bec bee bek bel bes bka bkb bkc bke bkk bkl bks bla blb blc ble blk bll bls bsa bsb bsc bse bsk bsl bss c-- caa cab cac cae cak cal cas cba cbb cbc cbe cbk cbl cbs cca ccb ccc cce cck ccl ccs ce- cea ceb cec cee cek cel ces cka ckb ckc cks cl- cla clb clc cle clk cll cls csa csb csc cse csk csl css eaa eab eac eae eak eal eas eba ebb ebc ebe ebk ebl ebs ec- eca ecb ecc ece eck ecl ecs eea eeb eec eee eek eel ees eka ekb ekc eke ekl eks ela elb elc ele elk ell els es- esa esb esc ese esk esl ess ka- kaa kab kac kae kak kal kas kba kbb kbc kbe kbk kbl kbs kca kcb kcc kce kck kcl kcs ke- kea keb kec kee kek kel kes kkb kkc kke kkk kkl kks kl- kla klb klc kls ksa ksb ksc kse ksk ksl kss la- laa lab lac lae lak lal las lba lbb lbc lbe lbk lbl lbs lca lcb lcc lce lck lcl lcs lea leb lec lee lek lel les lka lkb lkl lks lla llb llc lle llk lll lls lsa lsb lsc lse lsk lsl lss saa sab sac sae sak sal sas sba sbb sbc sbe sbk sbl sbs sca scb scc sce sck scl scs se- sea seb sec see sek sel ses sk- ska skb skc ske skk skl sks sla slb slc sle slk sll sls ss- ssa ssb ssc sse ssk ssl sss

-ase a-ak a-be aaaa aaab aaac aaae aaal aaas aaba aabb aabc aabl aaca aacb aacc aace aack aacl aacs aaea aaec aaes aaka aake aala aalc aale aall aals aasa aasc aase aass abaa abab abac abae abak abal abas abb- abba abbb abbe abbs abca abcb abcc abcl abcs abec abee abel abes abla able abls abs- absa abse absl abss acaa acab acac acae acas acba acbl acca accc acce accs ace- acea acec acek acel aces acke acks acla aclc acle acls acsa acsc acse acsl acss aeac aeas aebs aecb aecl aeka aela aelc aesc aess akaa akae akal akas akca akee akel akes akka akle aksa alaa alac alae alak alal alas alb- alba albc albe albs alca alcc alce alcs alea alec alee alek ales alk- alka alkb alke all- alla alle alll alls alsa alsc alse asaa asab asac asae asak asal asas asba asc- asca ascb ascc asce ascl asea asec asee asek asel ases aska aske asks asla asle assa assc asse assk assl asss baaa baak baal baas baba babb babe babs bac- baca bacc bace back bacs baek bael baes bak- baka bake bakl baks bala balc bale balk ball bals basa basc base bask bass bbas bbbb bbbs bbeb bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcec bces bcsa bcsc bcsl bcss beak beal beas beba bebb bebe beca beck becs beeb beek beel bees beka beke beks bela bele belk bell bels bes- besa bese besk bess blaa blab blac blae blak blas blea bleb blee blek bles blkb blls blss bsaa bsac bsas bscs bsea bseb bsec bsee bses bslc bssc bsse caaa caab caac caal caas caba cabe cabs cac- caca cacc cace cack caec caes caka cake cala calc cale calk call cals casa casb casc case cask casl cass cbac cbal cbbc cbbs cbca cbcc cbce cbcl cbcs cbea cbec cbee cbka cbkl cblb cblc cbsa cbsc cbse ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccl cccs ccee ccel ccla cclc ccls ccsa ccsl ccss ceac ceal ceas ceba cebs cec- ceca cece cecs ceeb ceec ceel cees ceke cel- cela celc cele cell cels cesa cesc cese cess ckac ckbc ckbe ckck ckcl ckcs cksa cksb cksl clab clas clea clec clee clek cles clsa clsc csaa csab csac csak csas cscb cscc csce cscl cscs csea csec csee cska csks csla cssa csse e-cl e-la eaba eaca eacc eaec eala ealc eale easa ease ebac ebal ebba ebbc ebbs ebcc ebel ebes ebla ebsa ecaa ecac ecal ecbc ecbe ecca eccb eccc ecce eccl eces ecka ecks ecla ecsa ecsc ecse ecss eeca eecs eeea eeee eees eeka eeke eeks eele eels eese eesk eka- ekab ekeb ekek ekes ekka el-b elab elac elal elas elba elbe elca elcb elce elea elec elee elek eles elka elke elks ella elle ells elsa else esab esac esas esba esbs esca escb esce escs esea esee esek esel eses eska eske esks esla essa esse essl kaaa kaab kaak kaal kaas kaba kabb kabc kabe kacb kacc kace kacl kacs kael kaes kaka kakc kake kakk kaks kala kalb kalc kale kalk kall kals kas- kasa kasb kasc kase kask kasl kass kbaa kbab kbac kbae kbak kbal kbas kbba kbbb kbbc kbbe kbbk kbbl kbbs kbca kbcb kbce kbck kbcl kbcs kbeb kbec kbee kbek kbel kbes kbkb kbkk kbkl kbla kblb kble kbll kbls kbsa kbsb kbsk kbss kcaa kcab kcac kcal kcas kcba kcbc kcbk kcbl kcbs kcca kccb kccc kcck kccl kcea kceb kcec kcee kcel kckc kckk kckl kcla kclc kcle kclk kcll kcls kcsa kcsb kcsc kcse kcss kea- keak keal keas keba kebb kebc kebe keca keck keek keel kees keka kekb kekc keke kekl keks kela kele kelk kell kesa kesb kesc kesk kess kkaa kkac