bbb bbe bbf bbg bbi bbn bbs bbt be- beb bee bef beg bei ben bes bet bfb bfe bff bfg bfi bfn bfs bft bgb bge bgf bgg bgi bgn bgs bgt bi- bib bie bif big bii bin bis bit bnb bne bnf bng bni bnn bns bnt bsb bse bsf bsg bsi bsn bss bst btb bte btf btg bti btn bts btt ebb ebe ebf ebg ebi ebn ebs ebt eeb eee eef eeg een ees eet ef- efb efe eff efg efi efs eft egb ege egf egg egi egn egs egt eib eie eif eig eii ein eis eit en- enb ene enf eng eni enn ens ent es- esb ese esf esg esi esn ess est etb ete etf etg eti etn ets ett fbb fbe fbf fbg fbi fbn fbs fbt feb fee fef feg fei fen fes fet ffe fff ffg ffi ffn ffs fft fgb fge fgf fgg fgi fgn fgs fgt fib fie fif fig fii fin fis fit fnb fne fnf fng fni fnn fns fnt fsb fse fsf fsg fsi fsn fss fst ftb fte ftf ftg fti ftn fts ftt gbe gbf gbg gbi gbn gbs gbt ge- geb gee gef geg gei gen ges get gfb gfe gff gfi gfs gft ggb ggg ggi ggn ggs ggt gib gie gif gig gii gin gis git gnb gne gnf gni gnn gns gnt gsb gse gsf gsg gsi gsn gss gst gtb gte gtf gtg gti gtn gts gtt i-f ibb ibe ibf ibg ibi ibn ibs ibt ie- iee ief ieg iei ien ies iet ifb ife iff ifg ifi ifn ifs ift igb ige igf igg igi ign igs igt iib iie iif iii iin iis iit in- inb ine inf ing ini inn ins int is- isb ise isf isg isi isn iss ist itb ite itf itg iti itn its itt n-i nbb nbe nbf nbg nbi nbn nbs nbt ne- neb nee nef neg nei nen nes net nfb nfe nff nfi nfn nfs nft ngb nge ngf ngg ngi ngn ngs ngt nib nie nif nig nii nin nis nit nnb nne nnf nng nni nnn nns nnt nsb nse nsf nsg nsi nsn nss nst ntb nte ntf ntg nti ntn nts ntt sbb sbe sbf sbg sbi sbn sbs sbt se- seb see sef seg sei sen ses set sfb sfe sff sfg sfi sfn sfs sft sgb sge sgf sgg sgi sgn sgs sgt sib sie sif sig sii sin sis sit snb sne snf sng sni snn sns snt ss- ssb sse ssf ssg ssi ssn sss sst stb ste stf stg sti stn sts stt tbb tbe tbf tbg tbi tbn tbs tbt te- teb tee tef teg tei ten tes tet tfb tfe tff tfg tfi tfn tfs tft tgb tge tgf tgg tgi tgn tgs tgt tib tie tif tig tii tin tis tit tnb tne tnf tng tni tnn tns tnt tsb tse tsf tsg tsi tsn tss tst ttb tte ttf ttg tti ttn tts ttt