bbb bbf bbh bbi bbo bbr bbs bfb bff bfh bfi bfo bfr bfs bhb bhf bhh bhi bho bhr bhs bi- bib bif bih bii bio bir bis bob bof boh boi boo bor bos brb brf brh bri bro brr brs bsb bsf bsh bsi bso bsr bss fbb fbf fbh fbi fbo fbr fbs fff ffh ffi ffo ffr ffs fhb fhf fhh fhi fho fhr fhs fib fif fih fii fir fis fob fof foh foi foo for fos frb frf frh fri fro frr frs fsb fsf fsh fsi fso fsr fss h-i hbb hbf hbh hbi hbo hbr hbs hfb hff hfh hfi hfo hfr hfs hhb hhf hhh hhi hho hhr hhs hib hif hih hii hio hir his hob hof hoh hoi hoo hor hos hr- hrb hrf hrh hri hro hrr hrs hsb hsf hsh hsi hsr hss i-f ibb ibf ibh ibi ibo ibr ibs ifb iff ifi ifo ifr ifs ihb ihf ihh ihi iho ihr ihs iib iif iih iii iio iir iis io- iob iof ioh ioi ioo ior ios ir- irb irf iri iro irr irs is- isb isf ish isi iso isr iss o-i ob- obb obf obh obi obo obr obs of- ofb off ofi ofo ofr ofs ohf ohh ohi oho ohr ohs oib oif oii oio oir ois oo- oob oof ooh ooi ooo oor oos or- orb orf orh ori oro orr ors os- osb osf osh osi oso osr oss rbb rbf rbh rbi rbo rbr rbs rfb rff rfh rfi rfo rfr rfs rh- rhb rhf rhh rhi rho rhr rhs rib rif rih rii rio rir ris rob rof roh roi roo ror ros rrb rrf rrh rri rrr rrs rsb rsf rsh rsi rso rsr rss sbb sbf sbh sbi sbo sbr sbs sfb sff sfh sfi sfo sfr sfs sh- shb shf shh shi sho shr shs sib sif sih sii sio sir sis sob sof soh soi soo sor sos sr- srb srf srh sri sro srr srs ss- ssb ssf ssh ssi sso ssr sss