bbb bbg bbi bbn bby bgb bgg bgi bgn bgz bi- bib big bii bin biy biz bnb bng bni bnn bnz by- byg byi byn byz bzn bzz gbg gbi gbn gby gbz ggb ggg ggi ggn ggz gib gig gii gin giy giz gnb gni gnn gy- gyb gyn ibb ibg ibi ibn iby ibz igb igg igi ign igy iib iii iin in- inb ing ini inn iny iyy izi izy izz n-i nbb nbg nbi nbn ngb ngg ngi ngn nib nig nii nin niz nnb nng nni nnn nnz nyg nyn nyy nzb nzg nzi nzz ybg ybi yby ybz yig yii yin yiz yng ynn yny yyb yyg yyy yyz yzb yzy z-g zbb zby zgb zgg zgi zib zig zin ziz znn zzy zzz