b-u bbb bbf bbg bbi bbl bbm bbn bbu bfb bff bfg bfi bfl bfm bfn bfu bgb bgf bgg bgi bgl bgm bgn bgu bi- bib bif big bii bil bim bin biu blb blf blg bli bll blm bln blu bmb bmf bmg bmi bml bmm bmn bmu bnb bnf bng bni bnl bnn bnu bub buf bug bui bul bum bun buu fbb fbf fbg fbi fbl fbm fbn fbu fff ffg ffi ffl ffm ffn ffu fgb fgf fgg fgi fgl fgm fgn fib fif fig fii fil fim fin fiu flb flf flg fli fll flm fln flu fmb fmf fmg fmi fml fmm fmn fmu fnb fnf fng fni fnl fnm fnn fnu fub fuf fug fui ful fum fun fuu gbf gbg gbi gbl gbm gbn gbu gfb gff gfi gfl gfm ggb ggg ggi ggm ggn ggu gib gif gig gii gil gim gin giu glb glf glg gli gll glm gln glu gmb gmf gmg gmi gml gmm gmn gnb gnf gni gnl gnm gnn gnu gu- gub guf gug gui gul gum gun guu i-f ibb ibf ibg ibi ibl ibm ibn ibu ifb iff ifg ifi ifl ifm ifn ifu igb igf igg igi igl igm ign igu iib iif iii iil iim iin iiu il- ilb ilf ilg ili ill ilm iln ilu im- imb imf img imi iml imm imn imu in- inb inf ing ini inl inm inn inu iu- iub iug iui ium lbb lbf lbg lbi lbl lbm lbu lfb lff lfg lfi lfl lfm lfn lfu lgb lgf lgg lgi lgl lgm lgn lgu lib lif lig lii lil lim lin liu llb llf llg lli lll llm lln llu lmb lmf lmg lmi lml lmm lmn lmu lnb lng lni lnl lnm lnn lnu lub luf lug lui lul lum lun luu m-f mbb mbf mbg mbi mbl mbm mbu mfb mff mfg mfi mfl mfm mfn mfu mgb mgf mgi mgl mgm mgn mgu mi- mib mif mig mii mil mim min miu mlb mlf mlg mli mll mlm mln mlu mmb mmf mmg mmi mml mmm mmn mmu mnb mnf mng mni mnl mnm mnn mnu mub muf mug mui mul mum mun muu n-i nbb nbf nbg nbi nbl nbm nbn nbu nfb nff nfi nfl nfn nfu ngb ngf ngg ngi ngl ngm ngn ngu nib nif nig nii nil nim nin niu nlb nlf nlg nli nll nlm nln nlu nmb nmg nmi nml nmm nmn nmu nnb nnf nng nni nnl nnm nnn nnu nub nug nui nul num nun nuu ubb ubf ubg ubi ubl ubn ubu uff ufg ufi ufl ufm ufn ufu ugb ugf ugg ugi ugl ugm ugn ugu uib uif uig uii uil uim uin uiu ulb ulf ulg uli ull ulm uln ulu um- umb umf umg umi uml umm umn umu un- unb unf ung uni unl unm unn unu uug uum uun uuu