-th bbb bbd bbe bbh bbn bbt bdb bdd bde bdh bdt be- beb bed bee beh ben bet bhb bhd bhe bhh bht bnb bnd bne bnn bnt btb btd bte bth btn btt dbb dbd dbe dbh dbn dbt ddb ddd dde ddh ddn ddt de- deb ded dee deh den det dh- dhb dhd dhe dhh dht dnb dnd dne dnh dnn dnt dtb dtd dte dth dtn dtt ebb ebd ebe ebh ebn ebt ed- edb edd ede edh edn edt eeb eed eee een eet ehb ehd ehe ehh ehn eht en- enb end ene enh enn ent etb etd ete eth etn ett hbb hbd hbe hbh hbn hbt hdb hdd hde hdh hdn hdt he- heb hed hee heh hen het hhb hhd hhe hhh hhn hht hnb hnd hne hnh hnn hnt htb htd hte hth htn htt nbb nbd nbe nbn nbt ndb ndd nde ndh ndn ndt ne- neb ned nee neh nen net nhb nhd nhe nhh nhn nht nnb nne nnh nnn nnt ntb ntd nte nth ntn ntt tbb tbd tbe tbh tbn tbt tdb tdd tde tdh tdn tdt te- teb ted tee teh ten tet th- thb thd the thh thn tht tnb tnd tne tnh tnn tnt ttb ttd tte tth ttn ttt