bbb bbg bbi bbn bbr bby bgb bgg bgi bgn bgr bgz bi- bib big bii bin bir biy biz bnb bng bni bnn bnr bnz brb brg bri brn brr bry brz by- byg byi byn byr byz bzn bzr bzz gbg gbi gbn gbr gby gbz ggb ggg ggi ggn ggr ggz gib gig gii gin gir giy giz gnb gni gnn gnr grb grg gri grn grr gry gy- gyb gyn gyr gzr ibb ibg ibi ibn ibr iby ibz igb igg igi ign igr igy iib iii iin iir in- inb ing ini inn inr iny ir- irb irg iri irn irr iry iyr iyy izi izy izz n-i nbb nbg nbi nbn nbr ngb ngg ngi ngn nib nig nii nin nir niz nnb nng nni nnn nnz nrb nrg nri nrn nrr nry nrz nyg nyn nyy nzb nzg nzi nzz rbb rbg rbi rbn rbr rgb rgg rgi rgn rgr rib rig rii rin rir riy riz rnb rng rni rnn rnr rny rnz rrb rrg rri rrn rrr ry- ryg ryn ryr ryy ryz rzb rzy ybg ybi ybr yby ybz yig yii yin yir yiz yng ynn yny yrg yrn yyb yyg yyy yyz yzb yzr yzy z-g zbb zbr zby zgb zgg zgi zib zig zin zir ziz znn zzr zzy zzz