-er -th bbb bbe bbg bbh bbi bbr bbs bbt be- beb bee beg beh bei ber bes bet bgb bge bgg bgh bgi bgr bgs bgt bhb bhe bhg bhh bhi bhr bhs bht bi- bib bie big bih bii bir bis bit brb bre brg brh bri brr brs brt bsb bse bsg bsh bsi bsr bss bst btb bte btg bth bti btr bts btt ebb ebe ebg ebh ebi ebr ebs ebt eeb eee eeg eer ees eet egb ege egg egh egi egr egs egt ehb ehe ehg ehh ehi ehr ehs eht eib eie eig eii eir eis eit erb ere erg erh eri err ers ert es- esb ese esg esh esi esr ess est etb ete etg eth eti etr ets ett gbe gbg gbh gbi gbr gbs gbt ge- geb gee geg geh gei ger ges get ggb ggg ggh ggi ggr ggs ggt ghb ghe ghg ghh ghi ghr ghs ght gib gie gig gih gii gir gis git grb gre grg grh gri grr grs grt gsb gse gsg gsi gsr gss gst gtb gte gtg gth gti gtr gts gtt h-i hbb hbe hbg hbh hbi hbr hbs hbt he- heb hee heg heh hei her hes het hgb hge hgg hgh hgi hgr hgs hgt hhb hhe hhg hhh hhi hhr hhs hht hib hie hig hih hii hir his hit hr- hrb hre hrg hrh hri hrr hrs hrt hsb hse hsg hsh hsi hsr hss hst htb hte htg hth hti htr hts htt ibb ibe ibg ibh ibi ibr ibs ibt ie- iee ieg iei ier ies iet igb ige igg igh igi igr igs igt ihb ihe ihg ihh ihi ihr ihs iht iib iie iih iii iir iis iit ir- irb ire irg iri irr irs irt is- isb ise isg ish isi isr iss ist itb ite itg ith iti its itt rbb rbe rbg rbh rbi rbr rbs rbt re- reb ree reg reh rei rer res ret rgb rge rgg rgh rgi rgr rgs rgt rh- rhb rhe rhg rhh rhi rhr rhs rht rib rie rig rih rii rir ris rit rrb rrg rrh rri rrr rrs rrt rsb rse rsg rsh rsi rsr rss rst rtb rte rtg rti rtr rts rtt sbb sbe sbg sbh sbi sbr sbs sbt se- seb see seg seh sei ser ses set sgb sge sgg sgh sgi sgr sgs sgt sh- shb she shg shh shi shr shs sht sib sie sig sih sii sir sis sit sr- srb sre srg srh sri srr srs srt ss- ssb sse ssg ssh ssi ssr sss sst stb ste stg sth sti str sts stt tbb tbe tbg tbh tbi tbr tbs tbt te- teb tee teg teh tei ter tes tet tgb tge tgg tgh tgi tgr tgs tgt th- thb the thg thh thi thr ths tht tib tie tig tih tii tir tis tit trb tre trg trh tri trr trs trt tsb tse tsg tsh tsi tsr tss tst ttb tte ttg tth tti ttr tts ttt