-th bbb bbd bbe bbh bbs bbt bdb bdd bde bdh bds bdt be- beb bed bee beh bes bet bhb bhd bhe bhh bhs bht bsb bsd bse bsh bss bst btb btd bte bth bts btt dbb dbd dbe dbh dbs dbt ddb ddd dde ddh dds ddt de- deb ded dee deh des det dh- dhb dhd dhe dhh dhs dht dsb dsd dse dsh dss dst dtb dtd dte dth dts dtt ebb ebd ebe ebh ebs ebt ed- edb edd ede edh eds edt eeb eed eee ees eet ehb ehd ehe ehh ehs eht es- esb esd ese esh ess est etb etd ete eth ets ett hbb hbd hbe hbh hbs hbt hdb hdd hde hdh hds hdt he- heb hed hee heh hes het hhb hhd hhe hhh hhs hht hsb hsd hse hsh hss hst htb htd hte hth hts htt sbb sbd sbe sbh sbs sbt sdb sdd sde sdh sds sdt se- seb sed see seh ses set sh- shb shd she shh shs sht ss- ssb ssd sse ssh sss sst stb std ste sth sts stt tbb tbd tbe tbh tbs tbt tdb tdd tde tdh tds tdt te- teb ted tee teh tes tet th- thb thd the thh ths tht tsb tsd tse tsh tss tst ttb ttd tte tth tts ttt