b-u bbb bbh bbi bbn bbr bbu bhb bhh bhi bhr bhu bi- bib bih bii bin bir biu bnb bni bnn bnr bnu brb brh bri brn brr bru bub buh bui bun bur buu h-i hbb hbh hbi hbn hbr hbu hhb hhh hhi hhn hhr hhu hib hih hii hin hir hiu hnb hnh hnn hnu hr- hrb hrh hri hrn hrr hru hub huh hui hun hur huu ibb ibh ibi ibn ibr ibu ihb ihh ihi ihn ihr ihu iib iih iii iin iir iiu in- inb inh ini inn inr inu ir- irb iri irn irr iru iu- iub iui iur n-i nbb nbi nbn nbr nbu nhb nhh nhi nhn nhr nhu nib nih nii nin nir niu nnb nnh nni nnn nnu nrb nri nrn nrr nru nub nuh nui nun nur nuu rbb rbh rbi rbn rbr rbu rh- rhb rhh rhi rhn rhr rhu rib rih rii rin rir rnb rnh rni rnn rnr rnu rrb rrh rri rrn rrr rru rub ruh rui run rur ruu ubb ubh ubi ubn ubr ubu uhb uhh uhi uhr uhu uib uii uin uir uiu un- unb unh uni unn unr unu ur- urb uri urn urr uru uun uur uuu