a-a a-b a-c a-t aaa aab aac aae aak aas aat aau ab- aba abb abc abe abk abs abt abu ac- aca acb acc ace ack acs act acu aea aeb aec aee aek aes aet aeu aka akb akc ake akk aks aku as- asa asb asc ase ask ass ast asu at- ata atb atc ate ats att atu au- aua aub auc aue auk aus aut b-u baa bab bac bae bak bas bat bau bba bbb bbc bbe bbk bbs bbt bbu bca bcb bcc bce bck bcs bct bcu be- bea beb bec bee bek bes bet beu bka bkb bkc bke bkk bks bkt bsa bsb bsc bse bsk bss bst bsu bta btb btc bte btk bts btt btu bua bub buc bue buk bus but buu c-- caa cab cac cae cak cas cat cau cba cbb cbc cbe cbk cbs cbt cbu cca ccb ccc cce cck ccs cct ccu ce- cea ceb cec cee cek ces cet ceu cka ckb ckc cks ckt csa csb csc cse csk css cst csu cta ctb ctc cte ctk cts ctt ctu cua cub cuc cue cuk cus cut cuu eaa eab eac eae eak eas eat eau eba ebb ebc ebe ebk ebs ebt ebu ec- eca ecb ecc ece eck ecs ect ecu eea eeb eec eee eek ees eet eka ekb ekc eke eks ekt eku es- esa esb esc ese esk ess est esu eta etb etc ete etk ets ett etu eu- eua eub euc eue eus eut k-t ka- kaa kab kac kae kak kas kat kau kba kbb kbc kbe kbk kbs kbu kca kcb kcc kce kck kcs kct kcu ke- kea keb kec kee kek kes ket kkb kkc kke kkk kks kkt kku ksa ksb ksc kse ksk kss kst ksu kta ktb ktc kte ktk kts ktt ktu kub kuc kue kuk kus kut kuu saa sab sac sae sak sas sat sau sba sbb sbc sbe sbk sbs sbt sbu sca scb scc sce sck scs sct scu se- sea seb sec see sek ses set seu sk- ska skb skc ske skk sks skt sku ss- ssa ssb ssc sse ssk sss sst ssu sta stb stc ste stk sts stt stu sua sub suc sue suk sus sut suu taa tab tac tae tak tas tat tau tba tbb tbc tbe tbk tbs tbt tbu tca tcb tcc tce tck tcs tct tcu te- tea teb tec tee tek tes tet teu tka tkb tkc tke tkk tks tkt tsa tsb tsc tse tsk tss tst tsu tta ttb ttc tte ttk tts ttt ttu tua tub tuc tue tuk tus tut tuu ua- uaa uab uac uae uak uas uat uau uba ubb ubc ube ubk ubs ubt ubu uca ucb ucc uce uck ucs uct ucu uea ueb uec uee ues uet uka ukb ukc uke ukk uku usa usb usc use usk uss ust usu uta utb utc ute utk uts utt utu uua uuc uue uus uut uuu

-ase a-ak a-be aaaa aaab aaac aaae aaas aaba aabb aabc aabt aaca aacb aacc aace aack aacs aact aacu aaea aaec aaes aaka aake aaku aasa aasc aase aass aast aasu aata aatc aatk aatt aaus abaa abab abac abae abak abas abat abau abb- abba abbb abbe abbs abbt abca abcb abcc abcs abct abec abee abes abet abs- absa abse abss absu abta abts abtu abua abue abuk abus abut ac-t acaa acab acac acae acas acat acba acca accc acce accs acct accu ace- acea acec acek aces acet acke acks acsa acsc acse acss acst acta actc acte acts actt actu acu- acue acus acut aeac aeas aebs aecb aect aeka aesc aess aest aeta aetc aett akaa akae akas akca akee akes akeu akka akku aksa akst aksu akte akua asaa asab asac asae asak asas asat asau asba asbu asc- asca ascb ascc asce asct asea asec asee asek ases aset aska aske asks askt assa assc asse assk asss asst assu asta astb astc aste asts asub asue asus at-t ataa atab atac atae atak atas atat atbs atca atcc atck atcs atea atec atee ates atka atkt atsb atsc atse atst atta atte atts attu atua atub atuc atuk atus auaa aube auca auce auct auke auks ausa ause aust ausu aut- aute auts baaa baak baas baat baba babb babe babs babu bac- baca bacc bace back bacs bact baek baes bak- baka bake baks bakt baku basa basc base bask bass bast basu bata batc bate bats batt batu bau- bauk bbas bbau bbbb bbbs bbeb bbet bcaa bcas bcat bcbc bcbs bcca bccc bccs bcec bces bcet bcsa bcsc bcss bctc bcts bcuc beak beas beat beau beba bebb bebe beca beck becs becu beeb beek bees beet beka beke beks bes- besa bese besk bess best beta betc bete bets bett betu beuk bsaa bsac bsas bsat bscs bsea bseb bsec bsee bses bset bskt bssc bsse bsts btaa btcc btcs btec btek btss bttb btus buat buba bubb bube bubs bubu buca bucc buce buck bucs bucu buea bueu buka buke bukk buku busa busc buse busk buss bust busu but- buta bute buts butt buus caaa caab caac caas caat caba cabe cabs cabu cac- caca cacc cace cack caec caes caeu caka cake casa casb casc case cask cass cast casu cat- cata catb catc cate cats catt catu cauc cauk caus caut cbac cbat cbbc cbbs cbca cbcc cbce cbcs cbct cbcu cbea cbec cbee cbet cbka cbsa cbsc cbse cbta cbtc cbus ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccee ccsa ccss ccst cctb cctc cctt ccuc ccus ccut ceac ceas ceat ceba cebs cebu cec- ceca cece cecs cect ceeb ceec cees ceke cesa cesc cese cess cest cet- ceta cete cets ckac ckat ckbc ckbe ckck ckcs cksa cksb ckst cktb