b-u bbb bbg bbi bbn bbr bbu bby bgb bgg bgi bgn bgr bgu bi- bib big bii bin bir biu biy bnb bng bni bnn bnr bnu brb brg bri brn brr bru bry bub bug bui bun bur buu buy by- byg byi byn byr byu gbg gbi gbn gbr gbu gby ggb ggg ggi ggn ggr ggu gib gig gii gin gir giu giy gnb gni gnn gnr gnu grb grg gri grn grr gru gry gu- gub gug gui gun gur guu guy gy- gyb gyn gyr ibb ibg ibi ibn ibr ibu iby igb igg igi ign igr igu igy iib iii iin iir iiu in- inb ing ini inn inr inu iny ir- irb irg iri irn irr iru iry iu- iub iug iui iur iyr iyy n-i nbb nbg nbi nbn nbr nbu ngb ngg ngi ngn ngu nib nig nii nin nir niu nnb nng nni nnn nnu nrb nrg nri nrn nrr nru nry nub nug nui nun nur nuu nuy nyg nyn nyu nyy rbb rbg rbi rbn rbr rbu rgb rgg rgi rgn rgr rib rig rii rin rir riy rnb rng rni rnn rnr rnu rny rrb rrg rri rrn rrr rru rub rug rui run rur ruu ruy ry- ryg ryn ryr ryu ryy ubb ubg ubi ubn ubr ubu uby ugb ugg ugi ugn ugr ugu uib uig uii uin uir uiu un- unb ung uni unn unr unu uny ur- urb urg uri urn urr uru ury uug uun uur uuu uyi uyu ybg ybi ybr yby yig yii yin yir yng ynn ynu yny yrg yrn yru yug yui yun yur yuu yuy yyb yyg yyu yyy