b-u bbb bbd bbh bbi bbn bbr bbs bbu bdb bdd bdh bdi bdr bds bdu bhb bhd bhh bhi bhr bhs bhu bi- bib bid bih bii bin bir bis biu bnb bnd bni bnn bnr bns bnu brb brd brh bri brn brr brs bru bsb bsd bsh bsi bsn bsr bss bsu bub bud buh bui bun bur bus buu dbb dbd dbh dbi dbn dbr dbs dbu ddb ddd ddh ddi ddn ddr dds ddu dh- dhb dhd dhh dhi dhr dhs dhu di- dib did dih dii din dir dis diu dnb dnd dnh dni dnn dnr dns drb drd dri drn drr drs dru dsb dsd dsh dsi dsn dsr dss dsu dub dud duh dui dun dur dus h-i hbb hbd hbh hbi hbn hbr hbs hbu hdb hdd hdh hdi hdn hdr hds hdu hhb hhd hhh hhi hhn hhr hhs hhu hib hid hih hii hin hir his hiu hnb hnd hnh hnn hns hnu hr- hrb hrd hrh hri hrn hrr hrs hru hsb hsd hsh hsi hsn hsr hss hsu hub hud huh hui hun hur hus huu i-d ibb ibd ibh ibi ibn ibr ibs ibu idb idd idh idi idn idr ids idu ihb ihd ihh ihi ihn ihr ihs ihu iib iid iih iii iin iir iis iiu in- inb ind inh ini inn inr ins inu ir- irb ird iri irn irr irs iru is- isb isd ish isi isn isr iss isu iu- iub iud iui iur ius n-i nbb nbd nbi nbn nbr nbs nbu ndb ndd ndh ndi ndn ndr nds ndu nhb nhd nhh nhi nhn nhr nhs nhu nib nid nih nii nin nir nis niu nnb nnh nni nnn nns nnu nrb nrd nri nrn nrr nrs nru nsb nsd nsh nsi nsn nsr nss nsu nub nud nuh nui nun nur nus nuu rbb rbd rbh rbi rbn rbr rbs rbu rdb rdd rdh rdi rdn rdr rds rdu rh- rhb rhd rhh rhi rhn rhr rhs rhu rib rid rih rii rin rir ris rnb rnd rnh rni rnn rnr rns rnu rrb rrd rrh rri rrn rrr rrs rru rsb rsd rsh rsi rsn rsr rss rsu rub rud ruh rui run rur rus ruu sbb sbd sbh sbi sbn sbr sbs sbu sdb sdd sdh sdi sdn sdr sds sdu sh- shb shd shh shi shn shr shs shu sib sid sih sii sin sir sis siu snb snd sni snn snr sns snu sr- srb srd srh sri srn srr srs ss- ssb ssd ssh ssi ssn ssr sss ssu sub sud suh sui sun sur sus suu ubb ubh ubi ubn ubr ubs ubu udb udd udi udn udr uds udu uhb uhd uhh uhi uhr uhs uhu uib uid uii uin uir uis uiu un- unb und unh uni unn unr uns unu ur- urb urd uri urn urr urs uru usb usd ush usi usn usr uss usu uun uur uus uuu