-er bbb bbe bbg bbn bbr bbs bbt be- beb bee beg ben ber bes bet bgb bge bgg bgn bgr bgs bgt bnb bne bng bnn bnr bns bnt brb bre brg brn brr brs brt bsb bse bsg bsn bsr bss bst btb bte btg btn btr bts btt ebb ebe ebg ebn ebr ebs ebt eeb eee eeg een eer ees eet egb ege egg egn egr egs egt en- enb ene eng enn enr ens ent erb ere erg ern err ers ert es- esb ese esg esn esr ess est etb ete etg etn etr ets ett gbe gbg gbn gbr gbs gbt ge- geb gee geg gen ger ges get ggb ggg ggn ggr ggs ggt gnb gne gnn gnr gns gnt grb gre grg grn grr grs grt gsb gse gsg gsn gsr gss gst gtb gte gtg gtn gtr gts gtt nbb nbe nbg nbn nbr nbs nbt ne- neb nee neg nen ner nes net ngb nge ngg ngn ngs ngt nnb nne nng nnn nns nnt nrb nre nrg nrn nrr nrs nrt nsb nse nsg nsn nsr nss nst ntb nte ntg ntn ntr nts ntt rbb rbe rbg rbn rbr rbs rbt re- reb ree reg ren rer res ret rgb rge rgg rgn rgr rgs rgt rnb rng rnn rnr rns rnt rrb rrg rrn rrr rrs rrt rsb rse rsg rsn rsr rss rst rtb rte rtg rtn rtr rts rtt sbb sbe sbg sbn sbr sbs sbt se- seb see seg sen ser ses set sgb sge sgg sgn sgr sgs sgt snb sne sng snn snr sns snt sr- srb sre srg srn srr srs srt ss- ssb sse ssg ssn ssr sss sst stb ste stg stn str sts stt tbb tbe tbg tbn tbr tbs tbt te- teb tee teg ten ter tes tet tgb tge tgg tgn tgr tgs tgt tnb tne tng tnn tnr tns tnt trb tre trg trn trr trs trt tsb tse tsg tsn tsr tss tst ttb tte ttg ttn ttr tts ttt