b-u bbb bbf bbg bbi bbl bbn bbu bfb bff bfg bfi bfl bfn bfu bgb bgf bgg bgi bgl bgn bgu bi- bib bif big bii bil bin biu blb blf blg bli bll bln blu bnb bnf bng bni bnl bnn bnu bub buf bug bui bul bun buu fbb fbf fbg fbi fbl fbn fbu fff ffg ffi ffl ffn ffu fgb fgf fgg fgi fgl fgn fib fif fig fii fil fin fiu flb flf flg fli fll fln flu fnb fnf fng fni fnl fnn fnu fub fuf fug fui ful fun fuu gbf gbg gbi gbl gbn gbu gfb gff gfi gfl ggb ggg ggi ggn ggu gib gif gig gii gil gin giu glb glf glg gli gll gln glu gnb gnf gni gnl gnn gnu gu- gub guf gug gui gul gun guu i-f ibb ibf ibg ibi ibl ibn ibu ifb iff ifg ifi ifl ifn ifu igb igf igg igi igl ign igu iib iif iii iil iin iiu il- ilb ilf ilg ili ill iln ilu in- inb inf ing ini inl inn inu iu- iub iug iui lbb lbf lbg lbi lbl lbu lfb lff lfg lfi lfl lfn lfu lgb lgf lgg lgi lgl lgn lgu lib lif lig lii lil lin liu llb llf llg lli lll lln llu lnb lng lni lnl lnn lnu lub luf lug lui lul lun luu n-i nbb nbf nbg nbi nbl nbn nbu nfb nff nfi nfl nfn nfu ngb ngf ngg ngi ngl ngn ngu nib nif nig nii nil nin niu nlb nlf nlg nli nll nln nlu nnb nnf nng nni nnl nnn nnu nub nug nui nul nun nuu ubb ubf ubg ubi ubl ubn ubu uff ufg ufi ufl ufn ufu ugb ugf ugg ugi ugl ugn ugu uib uif uig uii uil uin uiu ulb ulf ulg uli ull uln ulu un- unb unf ung uni unl unn unu uug uun uuu