bbb bbi bbk bbl bbn bi- bib bii bik bil bin bkb bkk bkl bkn blb bli blk bll bln bnb bni bnk bnl bnn ibb ibi ibk ibl ibn iib iii iil iin ikb iki ikk ikl il- ilb ili ilk ill iln in- inb ini ink inl inn kbb kbi kbk kbl kbn kib kii kik kil kin kkb kki kkk kkl kkn kl- klb kli kn- kni knk knl knn lbb lbi lbk lbl lib lii lik lil lin lkb lkl llb lli llk lll lln lnb lni lnk lnl lnn n-i nbb nbi nbk nbl nbn nib nii nik nil nin nki nkk nkn nlb nli nlk nll nln nnb nni nnk nnl nnn