a-a a-b a-c a-t aaa aab aac aae aak aap aas aat ab- aba abb abc abe abk abp abs abt ac- aca acb acc ace ack acp acs act aea aeb aec aee aek aep aes aet aka akb akc ake akk akp aks ap- apa apb apc ape apk app aps apt as- asa asb asc ase ask asp ass ast at- ata atb atc ate atp ats att b-p baa bab bac bae bak bap bas bat bba bbb bbc bbe bbk bbp bbs bbt bca bcb bcc bce bck bcp bcs bct be- bea beb bec bee bek bep bes bet bka bkb bkc bke bkk bkp bks bkt bpa bpb bpc bpe bpp bps bpt bsa bsb bsc bse bsk bsp bss bst bta btb btc bte btk btp bts btt c-- caa cab cac cae cak cap cas cat cba cbb cbc cbe cbk cbp cbs cbt cca ccb ccc cce cck ccp ccs cct ce- cea ceb cec cee cek cep ces cet cka ckb ckc cks ckt cpa cpb cpc cpe cpk cpp cps cpt csa csb csc cse csk csp css cst cta ctb ctc cte ctk ctp cts ctt eaa eab eac eae eak eap eas eat eba ebb ebc ebe ebk ebp ebs ebt ec- eca ecb ecc ece eck ecs ect eea eeb eec eee eek eep ees eet eka ekb ekc eke ekp eks ekt ep- epa epb epc epe epp eps ept es- esa esb esc ese esk esp ess est eta etb etc ete etk etp ets ett k-t ka- kaa kab kac kae kak kap kas kat kba kbb kbc kbe kbk kbp kbs kca kcb kcc kce kck kcp kcs kct ke- kea keb kec kee kek kep kes ket kkb kkc kke kkk kkp kks kkt kpa kpc kpe kpk kpp kps kpt ksa ksb ksc kse ksk ksp kss kst kta ktb ktc kte ktk ktp kts ktt p-p paa pab pac pae pak pap pas pat pba pbb pbc pbe pbk pbp pbs pbt pca pcb pcc pce pck pcp pcs pct pea peb pec pee pek pep pes pet pka pkb pkc pke pkp pks pkt ppa ppb ppc ppe ppk ppp pps ppt ps- psa psb psc pse psk psp pss pst pt- pta ptb ptc pte ptk ptp pts ptt saa sab sac sae sak sap sas sat sba sbb sbc sbe sbk sbp sbs sbt sca scb scc sce sck scp scs sct se- sea seb sec see sek sep ses set sk- ska skb skc ske skk skp sks skt spa spb spc spe spk spp sps spt ss- ssa ssb ssc sse ssk ssp sss sst sta stb stc ste stk stp sts stt taa tab tac tae tak tap tas tat tba tbb tbc tbe tbk tbp tbs tbt tca tcb tcc tce tck tcp tcs tct te- tea teb tec tee tek tep tes tet tka tkb tkc tke tkk tkp tks tkt tpa tpb tpc tpe tpk tpp tps tpt tsa tsb tsc tse tsk tsp tss tst tta ttb ttc tte ttk ttp tts ttt

-ase a-ak a-be aaaa aaab aaac aaae aaap aaas aaba aabb aabc aabp aabt aaca aacb aacc aace aack aacp aacs aact aaea aaec aaep aaes aaka aake aapa aapc aaps aapt aasa aasc aase aass aast aata aatc aatk aatt abaa abab abac abae abak abap abas abat abb- abba abbb abbe abbs abbt abca abcb abcc abcp abcs abct abec abee abes abet abpa abpc abpp abps abs- absa abse absp abss abta abts ac-t acaa acab acac acae acap acas acat acba acca accc acce accp accs acct ace- acea acec acek aces acet acke acks acpa acpe acps acpt acsa acsc acse acss acst acta actc acte acts actt aeac aeap aeas aebs aecb aect aeka aesc aess aest aeta aetc aett akaa akae akap akas akca akee akes akka aksa akst akte apac apak apap apas apat apba apbs apca apcb apcc apcs apea apec apep apes apet apke appa appc apps appt apsa apse apss apta aptc apte apts aptt asaa asab asac asae asak asap asas asat asba asc- asca ascb ascc asce ascp asct asea asec asee asek asep ases aset aska aske asks askt aspa aspc aspe asps aspt assa assc asse assk assp asss asst asta astb astc aste astp asts at-t ataa atab atac atae atak atap atas atat atbs atca atcc atck atcs atea atec atee atep ates atka atkt atsb atsc atse atst atta atte attp atts baaa baak baas baat baba babb babe babs bac- baca bacc bace back bacs bact baek baes bak- baka bake baks bakt bapa bapc bape bapp baps bapt basa basc base bask bass bast bata batc bate bats batt bbas bbbb bbbs bbeb bbet bcaa bcap bcas bcat bcbc bcbp bcbs bcca bccc bccs bcec bces bcet bcpp bcps bcsa bcsc bcss bctc bcts beak beap beas beat beba bebb bebe beca beck becs beeb beek beep bees beet beka beke beks bes- besa bese besk bess best beta betc bete bets bett bkpt bksp bpcp bpea bpsa bsaa bsac bsap bsas bsat bscp bscs bsea bseb bsec bsee bses bset bskt bspp bssc bsse bsts btaa btbp btcc btcs btec btek btps btss bttb caaa caab caac caap caas caat caba cabe cabs cac- caca cacc cace cack caec caes caka cake capa capb capc cape capp caps capt casa casb casc case cask casp cass cast cat- cata catb catc cate cats catt cbac cbat cbbc cbbs cbca cbcc cbce cbcp cbcs cbct cbea cbec cbee cbet cbka cbpc cbpp cbsa cbsc cbse cbta cbtc ccaa ccab ccac ccap ccas ccat ccba ccbc ccca cccb cccc cccp cccs ccee ccpa ccpe ccpp ccps ccsa ccsp ccss ccst cctb cctc cctt ceac ceas ceat ceba cebp cebs cec- ceca cece cecp cecs cect ceeb ceec cees ceke cepa cepc cepe cepp ceps cept cesa