bbb bbh bbi bbr bbs bby bhb bhh bhi bhr bhs bi- bib bih bii bir bis biy brb brh bri brr brs bry bsb bsh bsi bsr bss bsy by- byh byi byr bys h-i hbb hbh hbi hbr hbs hby hhb hhh hhi hhr hhs hhy hib hih hii hir his hr- hrb hrh hri hrr hrs hsb hsh hsi hsr hss hsy hy- hyb hyh hyi hyr hys hyy ibb ibh ibi ibr ibs iby ihb ihh ihi ihr ihs ihy iib iih iii iir iis ir- irb iri irr irs iry is- isb ish isi isr iss isy iyr iys iyy rbb rbh rbi rbr rbs rh- rhb rhh rhi rhr rhs rib rih rii rir ris riy rrb rrh rri rrr rrs rsb rsh rsi rsr rss ry- ryr rys ryy sbb sbh sbi sbr sbs sby sh- shb shh shi shr shs shy sib sih sii sir sis sr- srb srh sri srr srs sry ss- ssb ssh ssi ssr sss sy- syb syh syi syr sys ybi ybr ybs yby yhi yhs yih yii yir yis yrs ysb ysi ysr yss ysy yyb yys yyy