-th bbb bbd bbh bbi bbs bbt bby bdb bdd bdh bdi bds bdt bdy bhb bhd bhh bhi bhs bht bi- bib bid bih bii bis bit biy bsb bsd bsh bsi bss bst bsy btb btd bth bti bts btt bty by- byd byh byi bys byt dbb dbd dbh dbi dbs dbt dby ddb ddd ddh ddi dds ddt ddy dh- dhb dhd dhh dhi dhs dht di- dib did dih dii dis dit diy dsb dsd dsh dsi dss dst dsy dtb dtd dth dti dts dtt dty dy- dyb dyd dys dyy h-i hbb hbd hbh hbi hbs hbt hby hdb hdd hdh hdi hds hdt hdy hhb hhd hhh hhi hhs hht hhy hib hid hih hii his hit hsb hsd hsh hsi hss hst hsy htb htd hth hti hts htt hty hy- hyb hyd hyh hyi hys hyt hyy i-d ibb ibd ibh ibi ibs ibt iby idb idd idh idi ids idt idy ihb ihd ihh ihi ihs iht ihy iib iid iih iii iis iit is- isb isd ish isi iss ist isy itb itd ith iti its itt ity iys iyt iyy sbb sbd sbh sbi sbs sbt sby sdb sdd sdh sdi sds sdt sdy sh- shb shd shh shi shs sht shy sib sid sih sii sis sit ss- ssb ssd ssh ssi sss sst stb std sth sti sts stt sty sy- syb syd syh syi sys syt tbb tbd tbh tbi tbs tbt tdb tdd tdh tdi tds tdt tdy th- thb thd thh thi ths tht thy tib tid tih tii tis tit tiy tsb tsd tsh tsi tss tst tsy ttb ttd tth tti tts ttt tty tyd tys tyt ybi ybs yby yds ydt ydy yhi yhs yht yid yih yii yis yit ysb ysi yss yst ysy ytd yth yts ytt yyb yys yyt yyy