-th bbb bbh bbi bbr bbs bbt bhb bhh bhi bhr bhs bht bi- bib bih bii bir bis bit brb brh bri brr brs brt bsb bsh bsi bsr bss bst btb bth bti btr bts btt h-i hbb hbh hbi hbr hbs hbt hhb hhh hhi hhr hhs hht hib hih hii hir his hit hr- hrb hrh hri hrr hrs hrt hsb hsh hsi hsr hss hst htb hth hti htr hts htt ibb ibh ibi ibr ibs ibt ihb ihh ihi ihr ihs iht iib iih iii iir iis iit ir- irb iri irr irs irt is- isb ish isi isr iss ist itb ith iti its itt rbb rbh rbi rbr rbs rbt rh- rhb rhh rhi rhr rhs rht rib rih rii rir ris rit rrb rrh rri rrr rrs rrt rsb rsh rsi rsr rss rst rtb rti rtr rts rtt sbb sbh sbi sbr sbs sbt sh- shb shh shi shr shs sht sib sih sii sir sis sit sr- srb srh sri srr srs srt ss- ssb ssh ssi ssr sss sst stb sth sti str sts stt tbb tbh tbi tbr tbs tbt th- thb thh thi thr ths tht tib tih tii tir tis tit trb trh tri trr trs trt tsb tsh tsi tsr tss tst ttb tth tti ttr tts ttt