bbb bbd bbe bbi bbn bbs bbt bdb bdd bde bdi bds bdt be- beb bed bee bei ben bes bet bi- bib bid bie bii bin bis bit bnb bnd bne bni bnn bns bnt bsb bsd bse bsi bsn bss bst btb btd bte bti btn bts btt dbb dbd dbe dbi dbn dbs dbt ddb ddd dde ddi ddn dds ddt de- deb ded dee dei den des det di- dib did die dii din dis dit dnb dnd dne dni dnn dns dnt dsb dsd dse dsi dsn dss dst dtb dtd dte dti dtn dts dtt ebb ebd ebe ebi ebn ebs ebt ed- edb edd ede edi edn eds edt eeb eed eee een ees eet eib eid eie eii ein eis eit en- enb end ene eni enn ens ent es- esb esd ese esi esn ess est etb etd ete eti etn ets ett i-d ibb ibd ibe ibi ibn ibs ibt idb idd ide idi idn ids idt ie- ied iee iei ien ies iet iib iid iie iii iin iis iit in- inb ind ine ini inn ins int is- isb isd ise isi isn iss ist itb itd ite iti itn its itt n-i nbb nbd nbe nbi nbn nbs nbt ndb ndd nde ndi ndn nds ndt ne- neb ned nee nei nen nes net nib nid nie nii nin nis nit nnb nne nni nnn nns nnt nsb nsd nse nsi nsn nss nst ntb ntd nte nti ntn nts ntt sbb sbd sbe sbi sbn sbs sbt sdb sdd sde sdi sdn sds sdt se- seb sed see sei sen ses set sib sid sie sii sin sis sit snb snd sne sni snn sns snt ss- ssb ssd sse ssi ssn sss sst stb std ste sti stn sts stt tbb tbd tbe tbi tbn tbs tbt tdb tdd tde tdi tdn tds tdt te- teb ted tee tei ten tes tet tib tid tie tii tin tis tit tnb tnd tne tni tnn tns tnt tsb tsd tse tsi tsn tss tst ttb ttd tte tti ttn tts ttt