a-a a-b a-c a-t aaa aab aac aad aae aak aas aat ab- aba abb abc abd abe abk abs abt ac- aca acb acc acd ace ack acs act ad- ada adb adc add ade adk ads adt aea aeb aec aed aee aek aes aet aka akb akc akd ake akk aks as- asa asb asc asd ase ask ass ast at- ata atb atc atd ate ats att baa bab bac bad bae bak bas bat bba bbb bbc bbd bbe bbk bbs bbt bca bcb bcc bcd bce bck bcs bct bda bdb bdc bdd bde bdk bds bdt be- bea beb bec bed bee bek bes bet bka bkb bkc bke bkk bks bkt bsa bsb bsc bsd bse bsk bss bst bta btb btc btd bte btk bts btt c-- caa cab cac cad cae cak cas cat cba cbb cbc cbd cbe cbk cbs cbt cca ccb ccc ccd cce cck ccs cct cda cdb cdc cdd cde cdk cds cdt ce- cea ceb cec ced cee cek ces cet cka ckb ckc ckd cks ckt csa csb csc csd cse csk css cst cta ctb ctc ctd cte ctk cts ctt daa dab dac dad dae dak das dat dba dbb dbc dbd dbe dbk dbs dbt dca dcb dcc dcd dce dck dcs dct dda ddb ddc ddd dde ddk dds ddt de- dea deb dec ded dee dek des det dka dkb dkc dke dkk dks dkt dsa dsb dsc dsd dse dsk dss dst dta dtb dtc dtd dte dtk dts dtt eaa eab eac ead eae eak eas eat eba ebb ebc ebd ebe ebk ebs ebt ec- eca ecb ecc ecd ece eck ecs ect ed- eda edb edc edd ede edk eds edt eea eeb eec eed eee eek ees eet eka ekb ekc ekd eke eks ekt es- esa esb esc esd ese esk ess est eta etb etc etd ete etk ets ett k-t ka- kaa kab kac kad kae kak kas kat kba kbb kbc kbd kbe kbk kbs kca kcb kcc kcd kce kck kcs kct kda kdb kdc kde kdk kds kdt ke- kea keb kec ked kee kek kes ket kkb kkc kke kkk kks kkt ksa ksb ksc ksd kse ksk kss kst kta ktb ktc kte ktk kts ktt saa sab sac sad sae sak sas sat sba sbb sbc sbd sbe sbk sbs sbt sca scb scc scd sce sck scs sct sda sdb sdc sdd sde sdk sds sdt se- sea seb sec sed see sek ses set sk- ska skb skc skd ske skk sks skt ss- ssa ssb ssc ssd sse ssk sss sst sta stb stc std ste stk sts stt taa tab tac tad tae tak tas tat tba tbb tbc tbd tbe tbk tbs tbt tca tcb tcc tcd tce tck tcs tct tda tdb tdc tdd tde tdk tds tdt te- tea teb tec ted tee tek tes tet tka tkb tkc tke tkk tks tkt tsa tsb tsc tsd tse tsk tss tst tta ttb ttc ttd tte ttk tts ttt

-ase a-ak a-be aaaa aaab aaac aaad aaae aaas aaba aabb aabc aabd aabt aaca aacb aacc aacd aace aack aacs aact aada aadc aade aads aadt aaea aaec aaes aaka aake aasa aasc aasd aase aass aast aata aatc aatk aatt abaa abab abac abad abae abak abas abat abb- abba abbb abbe abbs abbt abca abcb abcc abcd abcs abct abda abec abed abee abes abet abs- absa absd abse abss abta abts ac-t acaa acab acac acad acae acas acat acba acca accc accd acce accs acct acda acdb acdc acde acds acdt ace- acea acec aced acek aces acet ackd acke acks acsa acsc acsd acse acss acst acta actc acte acts actt adaa adab adac adad adae adak adas adat adba adbc adcc adcs adda addc addd adde adds adea adeb adee ades adet adsa adss adst adta adts aeac aeas aebs aecb aect aede aedt aeka aesc aesd aess aest aeta aetc aett akaa akae akas akca aked akee akes akka aksa akst akte asaa asab asac asad asae asak asas asat asba asc- asca ascb ascc asce asct asda asde asds asea asec asee asek ases aset aska aske asks askt assa assc assd asse assk asss asst asta astb astc aste asts at-t ataa atab atac atad atae atak atas atat atbs atca atcc atck atcs atdt atea atec ated atee ates atka atkt atsb atsc atse atst atta atte atts baaa baad baak baas baat baba babb babe babs bac- baca bacc bace back bacs bact bada badb badd bade bads baed baek baes bak- baka bake baks bakt basa basc base bask bass bast bata batc bate bats batt bbad bbas bbbb bbbs bbdd bbeb bbet bcaa bcas bcat bcbc bcbs bcca bccc bccs bcda bcde bcds bcec bces bcet bcsa bcsc bcss bctc bcts bdbc bddc bdes bdsd bead beak beas beat beba bebb bebe beca beck becs beda bede beds beeb beed beek bees beet beka beke beks bes- besa bese besk bess best beta betc bete bets bett bsaa bsac bsas bsat bsbd bscs bsea bseb bsec bsed bsee bses bset bskt bssc bssd bsse bsts btaa btcc btcs btdt btec btek btss bttb c-cd caaa caab caac caas caat caba cabe cabs cac- caca cacc cace cack cada cadc cadd cade cads caec caes caka cake casa casb casc casd case cask cass cast cat- cata catb catc catd cate cats catt cbac cbat cbbc cbbs cbca cbcc cbce cbcs cbct cbdb cbdc cbds cbea cbec cbee cbet cbka cbsa cbsc cbse cbta cbtc ccaa ccab ccac ccad ccas ccat ccba ccbc ccca cccb cccc cccs ccdc ccds cced ccee ccsa ccsd ccss ccst cctb cctc cctt cd-e cdaa cdac cdad cdba cdcs cdda cddb cdec cdes cdss ceac cead ceas ceat ceba cebs cec- ceca cece cecs cect ceda cedd cede cedt ceeb