b-u bbb bbd bbh bbi bbn bbr bbu bdb bdd bdh bdi bdr bdu bhb bhd bhh bhi bhr bhu bi- bib bid bih bii bin bir biu bnb bnd bni bnn bnr bnu brb brd brh bri brn brr bru bub bud buh bui bun bur buu dbb dbd dbh dbi dbn dbr dbu ddb ddd ddh ddi ddn ddr ddu dh- dhb dhd dhh dhi dhr dhu di- dib did dih dii din dir diu dnb dnd dnh dni dnn dnr drb drd dri drn drr dru dub dud duh dui dun dur h-i hbb hbd hbh hbi hbn hbr hbu hdb hdd hdh hdi hdn hdr hdu hhb hhd hhh hhi hhn hhr hhu hib hid hih hii hin hir hiu hnb hnd hnh hnn hnu hr- hrb hrd hrh hri hrn hrr hru hub hud huh hui hun hur huu i-d ibb ibd ibh ibi ibn ibr ibu idb idd idh idi idn idr idu ihb ihd ihh ihi ihn ihr ihu iib iid iih iii iin iir iiu in- inb ind inh ini inn inr inu ir- irb ird iri irn irr iru iu- iub iud iui iur n-i nbb nbd nbi nbn nbr nbu ndb ndd ndh ndi ndn ndr ndu nhb nhd nhh nhi nhn nhr nhu nib nid nih nii nin nir niu nnb nnh nni nnn nnu nrb nrd nri nrn nrr nru nub nud nuh nui nun nur nuu rbb rbd rbh rbi rbn rbr rbu rdb rdd rdh rdi rdn rdr rdu rh- rhb rhd rhh rhi rhn rhr rhu rib rid rih rii rin rir rnb rnd rnh rni rnn rnr rnu rrb rrd rrh rri rrn rrr rru rub rud ruh rui run rur ruu ubb ubh ubi ubn ubr ubu udb udd udi udn udr udu uhb uhd uhh uhi uhr uhu uib uid uii uin uir uiu un- unb und unh uni unn unr unu ur- urb urd uri urn urr uru uun uur uuu