bbb bbg bbi bbk bbn bgb bgg bgi bgk bgn bi- bib big bii bik bin bkb bkg bkk bkn bnb bng bni bnk bnn gbg gbi gbk gbn ggb ggg ggi ggn gib gig gii gik gin gkb gkn gnb gni gnn ibb ibg ibi ibk ibn igb igg igi igk ign iib iii iin ikb iki ikk in- inb ing ini ink inn kbb kbi kbk kbn kgb kgi kib kig kii kik kin kkb kki kkk kkn kn- kng kni knk knn n-i nbb nbg nbi nbk nbn ngb ngg ngi ngk ngn nib nig nii nik nin nki nkk nkn nnb nng nni nnk nnn