bbb bbd bbi bbk bbn bbr bdb bdd bdi bdk bdr bi- bib bid bii bik bin bir bkb bkk bkn bkr bnb bnd bni bnk bnn bnr brb brd bri brk brn brr dbb dbd dbi dbk dbn dbr ddb ddd ddi ddk ddn ddr di- dib did dii dik din dir dkb dki dkk dkr dnb dnd dni dnk dnn dnr drb drd dri drk drn drr i-d ibb ibd ibi ibk ibn ibr idb idd idi idk idn idr iib iid iii iin iir ikb iki ikk ikr in- inb ind ini ink inn inr ir- irb ird iri irk irn irr kbb kbd kbi kbk kbn kbr kdb kdk kdr kib kid kii kik kin kir kkb kki kkk kkn kkr kn- knd kni knk knn knr krd kri krk krn krr n-i nbb nbd nbi nbk nbn nbr ndb ndd ndi ndk ndn ndr nib nid nii nik nin nir nki nkk nkn nkr nnb nni nnk nnn nrb nrd nri nrk nrn nrr rbb rbd rbi rbk rbn rbr rdb rdd rdi rdn rdr rib rid rii rik rin rir rkb rkk rnb rnd rni rnn rnr rrb rrd rri rrk rrn rrr