bbb bbd bbe bbl bbn bbt bdb bdd bde bdl bdt be- beb bed bee bel ben bet blb bld ble bll bln blt bnb bnd bne bnl bnn bnt btb btd bte btl btn btt dbb dbd dbe dbl dbn dbt ddb ddd dde ddl ddn ddt de- deb ded dee del den det dl- dlb dld dle dll dlt dnb dnd dne dnl dnn dnt dtb dtd dte dtl dtn dtt ebb ebd ebe ebl ebn ebt ed- edb edd ede edl edn edt eeb eed eee eel een eet elb eld ele ell eln elt en- enb end ene enl enn ent etb etd ete etl etn ett lbb lbd lbe lbl lbt ldb ldd lde ldl ldn ldt leb led lee lel len let llb lld lle lll lln llt lnb lnd lne lnl lnn lnt ltb ltd lte ltl ltt nbb nbd nbe nbl nbn nbt ndb ndd nde ndl ndn ndt ne- neb ned nee nel nen net nlb nld nle nll nln nlt nnb nne nnl nnn nnt ntb ntd nte ntn ntt tbb tbd tbe tbl tbn tbt tdb tdd tde tdl tdn tdt te- teb ted tee tel ten tet tld tle tll tln tlt tnb tnd tne tnl tnn tnt ttb ttd tte ttl ttn ttt