bbb bbi bbk bbl bbn bbr bi- bib bii bik bil bin bir bkb bkk bkl bkn bkr blb bli blk bll bln blr bnb bni bnk bnl bnn bnr brb bri brk brl brn brr ibb ibi ibk ibl ibn ibr iib iii iil iin iir ikb iki ikk ikl ikr il- ilb ili ilk ill iln ilr in- inb ini ink inl inn inr ir- irb iri irk irl irn irr kbb kbi kbk kbl kbn kbr kib kii kik kil kin kir kkb kki kkk kkl kkn kkr kl- klb kli klr kn- kni knk knl knn knr kri krk krl krn krr lbb lbi lbk lbl lbr lib lii lik lil lin lir lkb lkl lkr llb lli llk lll lln llr lnb lni lnk lnl lnn lnr lrb lri lrk lrn lrr n-i nbb nbi nbk nbl nbn nbr nib nii nik nil nin nir nki nkk nkn nkr nlb nli nlk nll nln nlr nnb nni nnk nnl nnn nrb nri nrk nrl nrn nrr rbb rbi rbk rbl rbn rbr rib rii rik ril rin rir rkb rkk rli rll rln rlr rnb rni rnn rnr rrb rri rrk rrl rrn rrr