-th b-u bbb bbd bbh bbn bbo bbs bbt bbu bdb bdd bdh bdo bds bdt bdu bhb bhd bhh bho bhs bht bhu bnb bnd bnn bno bns bnt bnu bob bod boh bon boo bos bot bou bsb bsd bsh bsn bso bss bst bsu btb btd bth btn bto bts btt btu bub bud buh bun buo bus but buu dbb dbd dbh dbn dbo dbs dbt dbu ddb ddd ddh ddn ddo dds ddt ddu dh- dhb dhd dhh dho dhs dht dhu dnb dnd dnh dnn dno dns dnt dob dod doh don doo dos dot dou dsb dsd dsh dsn dso dss dst dsu dtb dtd dth dtn dto dts dtt dtu dub dud duh dun duo dus dut hbb hbd hbh hbn hbo hbs hbt hbu hdb hdd hdh hdn hdo hds hdt hdu hhb hhd hhh hhn hho hhs hht hhu hnb hnd hnh hnn hno hns hnt hnu hob hod hoh hon hoo hos hot hou hsb hsd hsh hsn hss hst hsu htb htd hth htn hto hts htt hub hud huh hun huo hus hut huu nbb nbd nbn nbo nbs nbt nbu ndb ndd ndh ndn ndo nds ndt ndu nhb nhd nhh nhn nhs nht nhu nnb nnh nnn nno nns nnt nnu no- nob nod noh non noo nos not nou nsb nsd nsh nsn nso nss nst nsu ntb ntd nth ntn nto nts ntt ntu nub nud nuh nun nuo nus nut nuu ob- obb obd obh obn obo obs obt obu odb odd odh odn odo ods odt odu ohd ohh ohn oho ohs oht ohu on- onb ond onh onn ono ons ont onu oo- oob ood ooh oon ooo oos oot os- osb osd osh osn oso oss ost osu ot- otb otd oth otn oto ots ott otu ou- oud ouh oun ouo ous out sbb sbd sbh sbn sbo sbs sbt sbu sdb sdd sdh sdn sdo sds sdt sdu sh- shb shd shh shn sho shs sht shu snb snd snn sno sns snt snu sob sod soh son soo sos sot sou ss- ssb ssd ssh ssn sso sss sst ssu stb std sth stn sto sts stt stu sub sud suh sun suo sus sut suu tbb tbd tbh tbn tbo tbs tbt tbu tdb tdd tdh tdn tdo tds tdt tdu th- thb thd thh thn tho ths tht thu tnb tnd tnh tnn tno tns tnt to- tob tod toh ton too tos tot tou tsb tsd tsh tsn tso tss tst tsu ttb ttd tth ttn tto tts ttt ttu tub tud tuh tun tuo tus tut tuu ubb ubh ubn ubo ubs ubt ubu udb udd udn udo uds udt udu uhb uhd uhh uho uhs uht uhu un- unb und unh unn uno uns unt unu uob uod uon uoo uos uot usb usd ush usn uso uss ust usu utb utd uth utn uto uts utt utu uun uus uut uuu