b-u bbb bbh bbi bbk bbn bbr bbu bhb bhh bhi bhk bhr bhu bi- bib bih bii bik bin bir biu bkb bkk bkn bkr bnb bni bnk bnn bnr bnu brb brh bri brk brn brr bru bub buh bui buk bun bur buu h-i hbb hbh hbi hbk hbn hbr hbu hhb hhh hhi hhk hhn hhr hhu hib hih hii hik hin hir hiu hkb hkh hki hkk hkn hkr hku hnb hnh hnk hnn hnu hr- hrb hrh hri hrk hrn hrr hru hub huh hui huk hun hur huu ibb ibh ibi ibk ibn ibr ibu ihb ihh ihi ihk ihn ihr ihu iib iih iii iin iir iiu ikb iki ikk ikr iku in- inb inh ini ink inn inr inu ir- irb iri irk irn irr iru iu- iub iui iur kbb kbh kbi kbk kbn kbr kbu khh khi khk khn khr khu kib kih kii kik kin kir kiu kkb kkh kki kkk kkn kkr kku kn- kni knk knn knr knu kri krk krn krr kru kub kuh kui kuk kun kur kuu n-i nbb nbi nbk nbn nbr nbu nhb nhh nhi nhk nhn nhr nhu nib nih nii nik nin nir niu nki nkk nkn nkr nku nnb nnh nni nnk nnn nnu nrb nri nrk nrn nrr nru nub nuh nui nuk nun nur nuu rbb rbh rbi rbk rbn rbr rbu rh- rhb rhh rhi rhn rhr rhu rib rih rii rik rin rir rkb rkk rku rnb rnh rni rnn rnr rnu rrb rrh rri rrk rrn rrr rru rub ruh rui ruk run rur ruu ubb ubh ubi ubk ubn ubr ubu uhb uhh uhi uhr uhu uib uii uin uir uiu ukb uki ukk ukn ukr uku un- unb unh uni unk unn unr unu ur- urb uri urk urn urr uru uun uur uuu