-er bbb bbe bbf bbg bbi bbn bbr bbs bbt be- beb bee bef beg bei ben ber bes bet bfb bfe bff bfg bfi bfn bfr bfs bft bgb bge bgf bgg bgi bgn bgr bgs bgt bi- bib bie bif big bii bin bir bis bit bnb bne bnf bng bni bnn bnr bns bnt brb bre brf brg bri brn brr brs brt bsb bse bsf bsg bsi bsn bsr bss bst btb bte btf btg bti btn btr bts btt ebb ebe ebf ebg ebi ebn ebr ebs ebt eeb eee eef eeg een eer ees eet ef- efb efe eff efg efi efr efs eft egb ege egf egg egi egn egr egs egt eib eie eif eig eii ein eir eis eit en- enb ene enf eng eni enn enr ens ent erb ere erf erg eri ern err ers ert es- esb ese esf esg esi esn esr ess est etb ete etf etg eti etn etr ets ett fbb fbe fbf fbg fbi fbn fbr fbs fbt feb fee fef feg fei fen fer fes fet ffe fff ffg ffi ffn ffr ffs fft fgb fge fgf fgg fgi fgn fgr fgs fgt fib fie fif fig fii fin fir fis fit fnb fne fnf fng fni fnn fnr fns fnt frb fre frf frg fri frn frr frs frt fsb fse fsf fsg fsi fsn fsr fss fst ftb fte ftf ftg fti ftn ftr fts ftt gbe gbf gbg gbi gbn gbr gbs gbt ge- geb gee gef geg gei gen ger ges get gfb gfe gff gfi gfr gfs gft ggb ggg ggi ggn ggr ggs ggt gib gie gif gig gii gin gir gis git gnb gne gnf gni gnn gnr gns gnt grb gre grf grg gri grn grr grs grt gsb gse gsf gsg gsi gsn gsr gss gst gtb gte gtf gtg gti gtn gtr gts gtt i-f ibb ibe ibf ibg ibi ibn ibr ibs ibt ie- iee ief ieg iei ien ier ies iet ifb ife iff ifg ifi ifn ifr ifs ift igb ige igf igg igi ign igr igs igt iib iie iif iii iin iir iis iit in- inb ine inf ing ini inn inr ins int ir- irb ire irf irg iri irn irr irs irt is- isb ise isf isg isi isn isr iss ist itb ite itf itg iti itn its itt n-i nbb nbe nbf nbg nbi nbn nbr nbs nbt ne- neb nee nef neg nei nen ner nes net nfb nfe nff nfi nfn nfr nfs nft ngb nge ngf ngg ngi ngn ngs ngt nib nie nif nig nii nin nir nis nit nnb nne nnf nng nni nnn nns nnt nrb nre nrf nrg nri nrn nrr nrs nrt nsb nse nsf nsg nsi nsn nsr nss nst ntb nte ntf ntg nti ntn ntr nts ntt rbb rbe rbf rbg rbi rbn rbr rbs rbt re- reb ree ref reg rei ren rer res ret rfb rfe rff rfg rfi rfn rfr rfs rft rgb rge rgf rgg rgi rgn rgr rgs rgt rib rie rif rig rii rin rir ris rit rnb rng rni rnn rnr rns rnt rrb rrf rrg rri rrn rrr rrs rrt rsb rse rsf rsg rsi rsn rsr rss rst rtb rte rtf rtg rti rtn rtr rts rtt sbb sbe sbf sbg sbi sbn sbr sbs sbt se- seb see sef seg sei sen ser ses set sfb sfe sff sfg sfi sfn sfr sfs sft sgb sge sgf sgg sgi sgn sgr sgs sgt sib sie sif sig sii sin sir sis sit snb sne snf sng sni snn snr sns snt sr- srb sre srf srg sri srn srr srs srt ss- ssb sse ssf ssg ssi ssn ssr sss sst stb ste stf stg sti stn str sts stt tbb tbe tbf tbg tbi tbn tbr tbs tbt te- teb tee tef teg tei ten ter tes tet tfb tfe tff tfg tfi tfn tfr tfs tft tgb tge tgf tgg tgi tgn tgr tgs tgt tib tie tif tig tii tin tir tis tit tnb tne tnf tng tni tnn tnr tns tnt trb tre trf trg tri trn trr trs trt tsb tse tsf tsg tsi tsn tsr tss tst ttb tte ttf ttg tti ttn ttr tts ttt