b-p bbb bbh bbi bbn bbo bbp bbr bbs bhb bhh bhi bho bhp bhr bhs bi- bib bih bii bin bio bip bir bis bnb bni bnn bno bnp bnr bns bob boh boi bon boo bop bor bos bpb bph bpi bpn bpo bpp bpr bps brb brh bri brn bro brp brr brs bsb bsh bsi bsn bso bsp bsr bss h-i hbb hbh hbi hbn hbo hbp hbr hbs hhb hhh hhi hhn hho hhp hhr hhs hib hih hii hin hio hip hir his hnb hnh hnn hno hns hob hoh hoi hon hoo hop hor hos hpb hph hpi hpn hpo hpp hpr hps hr- hrb hrh hri hrn hro hrp hrr hrs hsb hsh hsi hsn hsp hsr hss ibb ibh ibi ibn ibo ibp ibr ibs ihb ihh ihi ihn iho ihp ihr ihs iib iih iii iin iio iip iir iis in- inb inh ini inn ino inp inr ins io- iob ioh ioi ion ioo iop ior ios ipb ipi ipn ipo ipp ipr ips ir- irb iri irn iro irp irr irs is- isb ish isi isn iso isp isr iss n-i nbb nbi nbn nbo nbp nbr nbs nhb nhh nhi nhn nhp nhr nhs nib nih nii nin nio nip nir nis nnb nnh nni nnn nno nnp nns no- nob noh noi non noo nop nor nos npb nph npi npn npo npp npr nps nrb nri nrn nro nrp nrr nrs nsb nsh nsi nsn nso nsp nsr nss o-i ob- obb obh obi obn obo obp obr obs ohh ohi ohn oho ohp ohr ohs oib oii oin oio oip oir ois on- onb onh oni onn ono onp onr ons oo- oob ooh ooi oon ooo oop oor oos op- opb oph opi opn opo opp opr ops or- orb orh ori orn oro orp orr ors os- osb osh osi osn oso osp osr oss p-p pbb pbi pbn pbo pbp pbr pbs phb phi phn pho php phr phs pib pih pii pin pio pip pir pis pn- pnb pnh pni pnn pno pnp pnr pns pob poh poi pon poo pop por pos ppb pph ppi ppn ppo ppp ppr pps prb prh pri prn pro prp prr prs ps- psb psh psi psn pso psp psr pss rbb rbh rbi rbn rbo rbp rbr rbs rh- rhb rhh rhi rhn rho rhp rhr rhs rib rih rii rin rio rip rir ris rnb rnh rni rnn rno rnp rnr rns rob roh roi ron roo rop ror ros rpb rph rpi rpn rpo rpp rpr rps rrb rrh rri rrn rrp rrr rrs rsb rsh rsi rsn rso rsp rsr rss sbb sbh sbi sbn sbo sbp sbr sbs sh- shb shh shi shn sho shp shr shs sib sih sii sin sio sip sir sis snb sni snn sno snp snr sns sob soh soi son soo sop sor sos spb sph spi spn spo spp spr sps sr- srb srh sri srn sro srp srr srs ss- ssb ssh ssi ssn sso ssp ssr sss