bbb bbi bbk bbn bbr bby bi- bib bii bik bin bir biy bkb bkk bkn bkr bnb bni bnk bnn bnr brb bri brk brn brr bry by- byi byk byn byr ibb ibi ibk ibn ibr iby iib iii iin iir ikb iki ikk ikr in- inb ini ink inn inr iny ir- irb iri irk irn irr iry iyr iyy kbb kbi kbk kbn kbr kib kii kik kin kir kkb kki kkk kkn kkr kky kn- kni knk knn knr kri krk krn krr kry kyn kyr n-i nbb nbi nbk nbn nbr nib nii nik nin nir nki nkk nkn nkr nky nnb nni nnk nnn nrb nri nrk nrn nrr nry nyk nyn nyy rbb rbi rbk rbn rbr rib rii rik rin rir riy rkb rkk rky rnb rni rnn rnr rny rrb rri rrk rrn rrr ry- ryk ryn ryr ryy ybi ybr yby yii yin yir yki ykk ykn ynk ynn yny yrn yyb yyy