-th b-u bbb bbd bbh bbr bbs bbt bbu bdb bdd bdh bdr bds bdt bdu bhb bhd bhh bhr bhs bht bhu brb brd brh brr brs brt bru bsb bsd bsh bsr bss bst bsu btb btd bth btr bts btt btu bub bud buh bur bus but buu dbb dbd dbh dbr dbs dbt dbu ddb ddd ddh ddr dds ddt ddu dh- dhb dhd dhh dhr dhs dht dhu drb drd drr drs drt dru dsb dsd dsh dsr dss dst dsu dtb dtd dth dtr dts dtt dtu dub dud duh dur dus dut hbb hbd hbh hbr hbs hbt hbu hdb hdd hdh hdr hds hdt hdu hhb hhd hhh hhr hhs hht hhu hr- hrb hrd hrh hrr hrs hrt hru hsb hsd hsh hsr hss hst hsu htb htd hth htr hts htt hub hud huh hur hus hut huu rbb rbd rbh rbr rbs rbt rbu rdb rdd rdh rdr rds rdt rdu rh- rhb rhd rhh rhr rhs rht rhu rrb rrd rrh rrr rrs rrt rru rsb rsd rsh rsr rss rst rsu rtb rtd rtr rts rtt rtu rub rud ruh rur rus rut ruu sbb sbd sbh sbr sbs sbt sbu sdb sdd sdh sdr sds sdt sdu sh- shb shd shh shr shs sht shu sr- srb srd srh srr srs srt ss- ssb ssd ssh ssr sss sst ssu stb std sth str sts stt stu sub sud suh sur sus sut suu tbb tbd tbh tbr tbs tbt tbu tdb tdd tdh tdr tds tdt tdu th- thb thd thh thr ths tht thu trb trd trh trr trs trt tru tsb tsd tsh tsr tss tst tsu ttb ttd tth ttr tts ttt ttu tub tud tuh tur tus tut tuu ubb ubh ubr ubs ubt ubu udb udd udr uds udt udu uhb uhd uhh uhr uhs uht uhu ur- urb urd urr urs urt uru usb usd ush usr uss ust usu utb utd uth utr uts utt utu uur uus uut uuu