bbb bbh bbi bbo bbr bbs bhb bhh bhi bho bhr bhs bi- bib bih bii bio bir bis bob boh boi boo bor bos brb brh bri bro brr brs bsb bsh bsi bso bsr bss h-i hbb hbh hbi hbo hbr hbs hhb hhh hhi hho hhr hhs hib hih hii hio hir his hob hoh hoi hoo hor hos hr- hrb hrh hri hro hrr hrs hsb hsh hsi hsr hss ibb ibh ibi ibo ibr ibs ihb ihh ihi iho ihr ihs iib iih iii iio iir iis io- iob ioh ioi ioo ior ios ir- irb iri iro irr irs is- isb ish isi iso isr iss o-i ob- obb obh obi obo obr obs ohh ohi oho ohr ohs oib oii oio oir ois oo- oob ooh ooi ooo oor oos or- orb orh ori oro orr ors os- osb osh osi oso osr oss rbb rbh rbi rbo rbr rbs rh- rhb rhh rhi rho rhr rhs rib rih rii rio rir ris rob roh roi roo ror ros rrb rrh rri rrr rrs rsb rsh rsi rso rsr rss sbb sbh sbi sbo sbr sbs sh- shb shh shi sho shr shs sib sih sii sio sir sis sob soh soi soo sor sos sr- srb srh sri sro srr srs ss- ssb ssh ssi sso ssr sss