-er -th bbb bbe bbh bbi bbr bbs bbt be- beb bee beh bei ber bes bet bhb bhe bhh bhi bhr bhs bht bi- bib bie bih bii bir bis bit brb bre brh bri brr brs brt bsb bse bsh bsi bsr bss bst btb bte bth bti btr bts btt ebb ebe ebh ebi ebr ebs ebt eeb eee eer ees eet ehb ehe ehh ehi ehr ehs eht eib eie eii eir eis eit erb ere erh eri err ers ert es- esb ese esh esi esr ess est etb ete eth eti etr ets ett h-i hbb hbe hbh hbi hbr hbs hbt he- heb hee heh hei her hes het hhb hhe hhh hhi hhr hhs hht hib hie hih hii hir his hit hr- hrb hre hrh hri hrr hrs hrt hsb hse hsh hsi hsr hss hst htb hte hth hti htr hts htt ibb ibe ibh ibi ibr ibs ibt ie- iee iei ier ies iet ihb ihe ihh ihi ihr ihs iht iib iie iih iii iir iis iit ir- irb ire iri irr irs irt is- isb ise ish isi isr iss ist itb ite ith iti its itt rbb rbe rbh rbi rbr rbs rbt re- reb ree reh rei rer res ret rh- rhb rhe rhh rhi rhr rhs rht rib rie rih rii rir ris rit rrb rrh rri rrr rrs rrt rsb rse rsh rsi rsr rss rst rtb rte rti rtr rts rtt sbb sbe sbh sbi sbr sbs sbt se- seb see seh sei ser ses set sh- shb she shh shi shr shs sht sib sie sih sii sir sis sit sr- srb sre srh sri srr srs srt ss- ssb sse ssh ssi ssr sss sst stb ste sth sti str sts stt tbb tbe tbh tbi tbr tbs tbt te- teb tee teh tei ter tes tet th- thb the thh thi thr ths tht tib tie tih tii tir tis tit trb tre trh tri trr trs trt tsb tse tsh tsi tsr tss tst ttb tte tth tti ttr tts ttt