-th a-a a-b a-c a-t aaa aab aac aae aaf aah aan aat aau ab- aba abb abc abe abf abh abn abt abu ac- aca acb acc ace acf ach acn act acu aea aeb aec aee aef aeh aen aet aeu af- afa afb afc afe aff afh afn aft afu aha ahb ahc ahe ahf ahh ahn aht ahu an- ana anb anc ane anf anh ann ant anu at- ata atb atc ate atf ath atn att atu au- aua aub auc aue auf auh aun aut b-u baa bab bac bae baf bah ban bat bau bba bbb bbc bbe bbf bbh bbn bbt bbu bca bcb bcc bce bcf bch bcn bct bcu be- bea beb bec bee bef beh ben bet beu bfa bfb bfc bfe bff bfh bfn bft bfu bha bhb bhc bhe bhf bhh bht bhu bna bnb bnc bne bnf bnn bnt bnu bta btb btc bte btf bth btn btt btu bua bub buc bue buf buh bun but buu c-- caa cab cac cae caf cah can cat cau cba cbb cbc cbe cbf cbh cbn cbt cbu cca ccb ccc cce ccf cch ccn cct ccu ce- cea ceb cec cee cef ceh cen cet ceu cfa cfb cfc cfe cff cfh cfn cft cfu ch- cha chb chc che chf chh chn cht chu cn- cna cnb cnc cne cnf cnh cnn cnt cnu cta ctb ctc cte ctf cth ctn ctt ctu cua cub cuc cue cuf cuh cun cut cuu eaa eab eac eae eaf eah ean eat eau eba ebb ebc ebe ebf ebh ebn ebt ebu ec- eca ecb ecc ece ecf ech ecn ect ecu eea eeb eec eee eef een eet ef- efa efb efc efe eff efh eft eha ehb ehc ehe ehf ehh ehn eht ehu en- ena enb enc ene enf enh enn ent enu eta etb etc ete etf eth etn ett etu eu- eua eub euc eue euf eun eut faa fab fac fae faf fah fan fat fau fba fbb fbc fbe fbf fbh fbn fbt fbu fca fcb fcc fce fcf fcn fct fcu fea feb fec fee fef feh fen fet feu ffa ffc ffe fff ffh ffn fft ffu fha fhb fhc fhe fhf fhh fhn fna fnb fnc fne fnf fnh fnn fnt fnu fta ftb ftc fte ftf fth ftn ftt ftu fua fub fue fuf fun fut fuu haa hab hac hae haf hah han hat hau hba hbb hbc hbe hbf hbh hbn hbt hbu hca hcb hcc hce hcf hch hcn hct he- hea heb hec hee hef heh hen het heu hfa hfb hfc hfe hff hfh hfn hft hfu hha hhb hhc hhe hhf hhh hhn hht hhu hna hnb hnc hne hnf hnh hnn hnt hnu hta htb htc hte htf hth htn htt hua hub huc hue huf huh hun hut huu naa nab nac nae naf nah nan nat nau nba nbb nbc nbe nbf nbn nbt nbu nca ncb ncc nce ncf nch ncn nct ncu ne- nea neb nec nee nef neh nen net neu nfa nfb nfc nfe nff nfn nft nfu nha nhb nhc nhe nhf nhh nhn nht nhu nna nnb nnc nne nnf nnh nnn nnt nnu nta ntb ntc nte ntf nth ntn ntt ntu nua nub nuc nue nuh nun nut nuu taa tab tac tae taf tah tan tat tau tba tbb tbc tbe tbf tbh tbn tbt tbu tca tcb tcc tce tcf tch tcn tct tcu te- tea teb tec tee tef teh ten tet teu tfa tfb tfc tfe tff tfh tfn tft tfu th- tha thb thc the thf thh thn tht thu tna tnb tnc tne tnf tnh tnn tnt tta ttb ttc tte ttf tth ttn ttt ttu tua tub tuc tue tuf tuh tun tut tuu ua- uaa uab uac uae uaf uah uan uat uau uba ubb ubc ube ubf ubh ubn ubt ubu uca ucb ucc uce ucf uch ucn uct ucu uea ueb uec uee uef ueh uen uet ufa ufc ufe uff ufh ufn uft ufu uha uhb uhc uhe uhf uhh uht uhu un- una unb unc une unf unh unn unt unu uta utb utc ute utf uth utn utt utu uua uuc uue uun uut uuu