-er bbb bbe bbg bbi bbk bbn bbr bbs bbt be- beb bee beg bei bek ben ber bes bet bgb bge bgg bgi bgk bgn bgr bgs bgt bi- bib bie big bii bik bin bir bis bit bkb bke bkg bkk bkn bkr bks bkt bnb bne bng bni bnk bnn bnr bns bnt brb bre brg bri brk brn brr brs brt bsb bse bsg bsi bsk bsn bsr bss bst btb bte btg bti btk btn btr bts btt ebb ebe ebg ebi ebk ebn ebr ebs ebt eeb eee eeg eek een eer ees eet egb ege egg egi egn egr egs egt eib eie eig eii eik ein eir eis eit ekb eke ekg eki ekr eks ekt en- enb ene eng eni enk enn enr ens ent erb ere erg eri erk ern err ers ert es- esb ese esg esi esk esn esr ess est etb ete etg eti etk etn etr ets ett gbe gbg gbi gbk gbn gbr gbs gbt ge- geb gee geg gei gek gen ger ges get ggb ggg ggi ggn ggr ggs ggt gib gie gig gii gik gin gir gis git gkb gkn gks gkt gnb gne gni gnn gnr gns gnt grb gre grg gri grk grn grr grs grt gsb gse gsg gsi gsk gsn gsr gss gst gtb gte gtg gti gtk gtn gtr gts gtt ibb ibe ibg ibi ibk ibn ibr ibs ibt ie- iee ieg iei iek ien ier ies iet igb ige igg igi igk ign igr igs igt iib iie iii iin iir iis iit ikb ike iki ikk ikr iks ikt in- inb ine ing ini ink inn inr ins int ir- irb ire irg iri irk irn irr irs irt is- isb ise isg isi isk isn isr iss ist itb ite itg iti itk itn its itt k-t kbb kbe kbi kbk kbn kbr kbs ke- keb kee keg kei kek ken ker kes ket kgb kgi kgs kib kie kig kii kik kin kir kis kit kkb kke kki kkk kkn kkr kks kkt kn- kne kng kni knk knn knr knt krg kri krk krn krr krs krt ksb kse ksg ksi ksk ksn ksr kss kst ktb kte ktg ktk ktn ktr kts ktt n-i nbb nbe nbg nbi nbk nbn nbr nbs nbt ne- neb nee neg nei nek nen ner nes net ngb nge ngg ngi ngk ngn ngs ngt nib nie nig nii nik nin nir nis nit nke nki nkk nkn nkr nks nkt nnb nne nng nni nnk nnn nns nnt nrb nre nrg nri nrk nrn nrr nrs nrt nsb nse nsg nsi nsk nsn nsr nss nst ntb nte ntg nti ntk ntn ntr nts ntt rbb rbe rbg rbi rbk rbn rbr rbs rbt re- reb ree reg rei rek ren rer res ret rgb rge rgg rgi rgk rgn rgr rgs rgt rib rie rig rii rik rin rir ris rit rkb rke rkg rkk rks rkt rnb rng rni rnn rnr rns rnt rrb rrg rri rrk rrn rrr rrs rrt rsb rse rsg rsi rsk rsn rsr rss rst rtb rte rtg rti rtk rtn rtr rts rtt sbb sbe sbg sbi sbk sbn sbr sbs sbt se- seb see seg sei sek sen ser ses set sgb sge sgg sgi sgk sgn sgr sgs sgt sib sie sig sii sik sin sir sis sit sk- skb ske skg ski skk skr sks skt snb sne sng sni snk snn snr sns snt sr- srb sre srg sri srk srn srr srs srt ss- ssb sse ssg ssi ssk ssn ssr sss sst stb ste stg sti stk stn str sts stt tbb tbe tbg tbi tbk tbn tbr tbs tbt te- teb tee teg tei tek ten ter tes tet tgb tge tgg tgi tgk tgn tgr tgs tgt tib tie tig tii tik tin tir tis tit tkb tke tkg tkk tkr tks tkt tnb tne tng tni tnk tnn tnr tns tnt trb tre trg tri trk trn trr trs trt tsb tse tsg tsi tsk tsn tsr tss tst ttb tte ttg tti ttk ttn ttr tts ttt