b-u bbb bbe bbf bbi bbk bbl bbn bbt bbu be- beb bee bef bei bek bel ben bet beu bfb bfe bff bfi bfl bfn bft bfu bi- bib bie bif bii bik bil bin bit biu bkb bke bkf bkk bkl bkn bkt blb ble blf bli blk bll bln blt blu bnb bne bnf bni bnk bnl bnn bnt bnu btb bte btf bti btk btl btn btt btu bub bue buf bui buk bul bun but buu ebb ebe ebf ebi ebk ebl ebn ebt ebu eeb eee eef eek eel een eet ef- efb efe eff efi efl eft eib eie eif eii eik eil ein eit eiu ekb eke ekf eki ekl ekt eku elb ele elf eli elk ell eln elt elu en- enb ene enf eni enk enl enn ent enu etb ete etf eti etk etl etn ett etu eu- eub eue euf eui eul eun eut fbb fbe fbf fbi fbk fbl fbn fbt fbu feb fee fef fei fek fel fen fet feu ffe fff ffi ffk ffl ffn fft ffu fib fie fif fii fik fil fin fit fiu fkb fkf fki fkk fkl fkt flb fle flf fli fll fln flt flu fnb fne fnf fni fnk fnl fnn fnt fnu ftb fte ftf fti ftk ftl ftn ftt ftu fub fue fuf fui fuk ful fun fut fuu i-f ibb ibe ibf ibi ibk ibl ibn ibt ibu ie- iee ief iei iek iel ien iet ifb ife iff ifi ifl ifn ift ifu iib iie iif iii iil iin iit iiu ikb ike ikf iki ikk ikl ikt iku il- ilb ile ilf ili ilk ill iln ilt ilu in- inb ine inf ini ink inl inn int inu itb ite itf iti itk itl itn itt itu iu- iub iue iui iut k-t kbb kbe kbf kbi kbk kbl kbn kbu ke- keb kee kef kei kek kel ken ket kff kfi kfu kib kie kif kii kik kil kin kit kiu kkb kke kki kkk kkl kkn kkt kku kl- klb klf kli klt klu kn- kne knf kni knk knl knn knt knu ktb kte ktf ktk ktl ktn ktt ktu kub kue kui kuk kul kun kut kuu lbb lbe lbf lbi lbk lbl lbt lbu leb lee lef lei lek lel len let leu lfb lfe lff lfi lfk lfl lfn lft lfu lib lie lif lii lik lil lin lit liu lkb lkl lkt llb lle llf lli llk lll lln llt llu lnb lne lni lnk lnl lnn lnt lnu ltb lte ltf lti ltk ltl ltt ltu lub lue luf lui luk lul lun lut luu n-i nbb nbe nbf nbi nbk nbl nbn nbt nbu ne- neb nee nef nei nek nel nen net neu nfb nfe nff nfi nfk nfl nfn nft nfu nib nie nif nii nik nil nin nit niu nke nkf nki nkk nkn nkt nku nlb nle nlf nli nlk nll nln nlt nlu nnb nne nnf nni nnk nnl nnn nnt nnu ntb nte ntf nti ntk ntn ntt ntu nub nue nui nuk nul nun nut nuu tbb tbe tbf tbi tbk tbl tbn tbt tbu te- teb tee tef tei tek tel ten tet teu tfb tfe tff tfi tfk tfl tfn tft tfu tib tie tif tii tik til tin tit tiu tkb tke tkk tkl tkt tle tlf tli tlk tll tln tlt tlu tnb tne tnf tni tnk tnl tnn tnt ttb tte ttf tti ttk ttl ttn ttt ttu tub tue tuf tui tuk tul tun tut tuu ubb ube ubf ubi ubk ubl ubn ubt ubu ueb uee uef uei uel uen uet ufe uff ufi ufl ufn uft ufu uib uie uif uii uil uin uit uiu ukb uke ukf uki ukk ukl ukn uku ulb ule ulf uli ulk ull uln ult ulu un- unb une unf uni unk unl unn unt unu utb ute utf uti utk utl utn utt utu uue uun uut uuu