b-u bbb bbf bbg bbi bbn bbr bbu bby bfb bff bfg bfi bfn bfr bfu bfy bgb bgf bgg bgi bgn bgr bgu bi- bib bif big bii bin bir biu biy bnb bnf bng bni bnn bnr bnu brb brf brg bri brn brr bru bry bub buf bug bui bun bur buu buy by- byf byg byi byn byr byu fbb fbf fbg fbi fbn fbr fbu fff ffg ffi ffn ffr ffu ffy fgb fgf fgg fgi fgn fgr fib fif fig fii fin fir fiu fnb fnf fng fni fnn fnr fnu frb frf frg fri frn frr fru fry fub fuf fug fui fun fur fuu fy- fyb fyi fyn gbf gbg gbi gbn gbr gbu gby gfb gff gfi gfr gfy ggb ggg ggi ggn ggr ggu gib gif gig gii gin gir giu giy gnb gnf gni gnn gnr gnu grb grf grg gri grn grr gru gry gu- gub guf gug gui gun gur guu guy gy- gyb gyf gyn gyr i-f ibb ibf ibg ibi ibn ibr ibu iby ifb iff ifg ifi ifn ifr ifu ify igb igf igg igi ign igr igu igy iib iif iii iin iir iiu in- inb inf ing ini inn inr inu iny ir- irb irf irg iri irn irr iru iry iu- iub iug iui iur iyr iyy n-i nbb nbf nbg nbi nbn nbr nbu nfb nff nfi nfn nfr nfu ngb ngf ngg ngi ngn ngu nib nif nig nii nin nir niu nnb nnf nng nni nnn nnu nrb nrf nrg nri nrn nrr nru nry nub nug nui nun nur nuu nuy nyf nyg nyn nyu nyy rbb rbf rbg rbi rbn rbr rbu rfb rff rfg rfi rfn rfr rfu rgb rgf rgg rgi rgn rgr rib rif rig rii rin rir riy rnb rng rni rnn rnr rnu rny rrb rrf rrg rri rrn rrr rru rub ruf rug rui run rur ruu ruy ry- ryf ryg ryn ryr ryu ryy ubb ubf ubg ubi ubn ubr ubu uby uff ufg ufi ufn ufr ufu ugb ugf ugg ugi ugn ugr ugu uib uif uig uii uin uir uiu un- unb unf ung uni unn unr unu uny ur- urb urf urg uri urn urr uru ury uug uun uur uuu uyi uyu ybf ybg ybi ybr yby yff yfr yfu yif yig yii yin yir yng ynn ynu yny yrf yrg yrn yru yug yui yun yur yuu yuy yyb yyf yyg yyu yyy