b-u bbb bbg bbi bbn bbu bgb bgg bgi bgn bgu bgz bi- bib big bii bin biu biz bnb bng bni bnn bnu bnz bub bug bui bun buu buz bzn bzu bzz gbg gbi gbn gbu gbz ggb ggg ggi ggn ggu ggz gib gig gii gin giu giz gnb gni gnn gnu gu- gub gug gui gun guu guz gzu ibb ibg ibi ibn ibu ibz igb igg igi ign igu iib iii iin iiu in- inb ing ini inn inu iu- iub iug iui iuz izi izu izz n-i nbb nbg nbi nbn nbu ngb ngg ngi ngn ngu nib nig nii nin niu niz nnb nng nni nnn nnu nnz nub nug nui nun nuu nzb nzg nzi nzz ubb ubg ubi ubn ubu ugb ugg ugi ugn ugu uib uig uii uin uiu un- unb ung uni unn unu uug uun uuu uzb uzi uzu z-g zbb zgb zgg zgi zib zig zin ziz znn zub zug zui zun zuz zzz