-th a-a a-b a-c a-t aaa aab aac aae aaf aah aan aao aap aas aat ab- aba abb abc abe abf abh abn abo abp abs abt ac- aca acb acc ace acf ach acn aco acp acs act aea aeb aec aee aef aeh aen aeo aep aes aet af- afa afb afc afe aff afh afn afo afp afs aft aha ahb ahc ahe ahf ahh ahn aho ahp ahs aht an- ana anb anc ane anf anh ann ano anp ans ant aoa aob aoc aoe aof aoh aon aoo aop aos aot ap- apa apb apc ape apf aph apn apo app aps apt as- asa asb asc ase asf ash asn aso asp ass ast at- ata atb atc ate atf ath atn ato atp ats att b-p baa bab bac bae baf bah ban bao bap bas bat bba bbb bbc bbe bbf bbh bbn bbo bbp bbs bbt bca bcb bcc bce bcf bch bcn bco bcp bcs bct be- bea beb bec bee bef beh ben beo bep bes bet bfa bfb bfc bfe bff bfh bfn bfo bfp bfs bft bha bhb bhc bhe bhf bhh bho bhp bhs bht bna bnb bnc bne bnf bnn bno bnp bns bnt boa bob boc boe bof boh bon boo bop bos bot bpa bpb bpc bpe bpf bph bpn bpo bpp bps bpt bsa bsb bsc bse bsf bsh bsn bso bsp bss bst bta btb btc bte btf bth btn bto btp bts btt c-- caa cab cac cae caf cah can cao cap cas cat cba cbb cbc cbe cbf cbh cbn cbo cbp cbs cbt cca ccb ccc cce ccf cch ccn cco ccp ccs cct ce- cea ceb cec cee cef ceh cen ceo cep ces cet cfa cfb cfc cfe cff cfh cfn cfo cfp cfs cft ch- cha chb chc che chf chh chn cho chp chs cht cn- cna cnb cnc cne cnf cnh cnn cno cnp cns cnt co- coa cob coc coe cof coh con coo cop cos cot cpa cpb cpc cpe cpf cph cpn cpo cpp cps cpt csa csb csc cse csf csh csn cso csp css cst cta ctb ctc cte ctf cth ctn cto ctp cts ctt eaa eab eac eae eaf eah ean eao eap eas eat eba ebb ebc ebe ebf ebh ebn ebo ebp ebs ebt ec- eca ecb ecc ece ecf ech ecn eco ecs ect eea eeb eec eee eef een eeo eep ees eet ef- efa efb efc efe eff efh efo efp efs eft eha ehb ehc ehe ehf ehh ehn eho ehp ehs eht en- ena enb enc ene enf enh enn eno enp ens ent eo- eoa eob eoc eoe eof eoh eon eoo eop eos eot ep- epa epb epc epe epf eph epn epo epp eps ept es- esa esb esc ese esf esh esn eso esp ess est eta etb etc ete etf eth etn eto etp ets ett faa fab fac fae faf fah fan fao fap fas fat fba fbb fbc fbe fbf fbh fbn fbo fbp fbs fbt fca fcb fcc fce fcf fcn fco fcp fcs fct fea feb fec fee fef feh fen feo fep fes fet ffa ffc ffe fff ffh ffn ffo ffp ffs fft fha fhb fhc fhe fhf fhh fhn fho fhp fhs fna fnb fnc fne fnf fnh fnn fnp fns fnt foa fob foc foe fof foh fon foo fop fos fot fpa fpb fpc fpe fph fpn fpo fpp fps fpt fsa fsb fsc fse fsf fsh fsn fso fsp fss fst fta ftb ftc fte ftf fth ftn fto ftp fts ftt haa hab hac hae haf hah han hao hap has hat hba hbb hbc hbe hbf hbh hbn hbo hbp hbs hbt hca hcb hcc hce hcf hch hcn hco hcp hcs hct he- hea heb hec hee hef heh hen heo hep hes het hfa hfb hfc hfe hff hfh hfn hfo hfp hfs hft hha hhb hhc hhe hhf hhh hhn hho hhp hhs hht hna hnb hnc hne hnf hnh hnn hno hns hnt hoa hob hoc hoe hof hoh hon hoo hop hos hot hpa hpb hpc hpe hpf hph hpn hpo hpp hps hpt hsa hsb hsc hse hsf hsh hsn hsp hss hst hta htb htc hte htf hth htn hto htp hts htt naa nab nac nae naf nah nan nao nap nas nat nba nbb nbc nbe nbf nbn nbo nbp nbs nbt nca ncb ncc nce ncf nch ncn nco ncp ncs nct ne- nea neb nec nee nef neh nen neo nep nes net nfa nfb nfc nfe nff nfn nfo nfp nfs nft nha nhb nhc nhe nhf nhh nhn nhp nhs nht nna nnb nnc nne nnf nnh nnn nno nnp nns nnt no- noa nob noc noe nof noh non noo nop nos not npa npb npc npe npf nph npn npo npp nps npt nsa nsb nsc nse nsf nsh nsn nso nsp nss nst nta ntb ntc nte ntf nth ntn nto ntp nts ntt oaa oab oac oae oaf oah oan oao oap oas oat ob- oba obb obc obe obf obh obn obo obp obs obt oc- oca ocb occ ocf och ocn oco ocp ocs oct oea oeb oec oee oef oeh oen oeo oep oes oet of- ofa ofb ofc ofe off ofn ofo ofp ofs oft oha ohc ohe ohf ohh ohn oho ohp ohs oht on- ona onb onc one onf onh onn ono onp ons ont oo- ooa oob ooc oof ooh oon ooo oop oos oot op- opa opb opc ope opf oph opn opo opp ops opt os- osa osb osc ose osf osh osn oso osp oss ost ot- ota otb otc ote otf oth otn oto otp ots ott p-p paa pab pac pae paf pah pan pao pap pas pat pba pbb pbc