-th bbb bbd bbh bbi bbr bbs bbt bby bdb bdd bdh bdi bdr bds bdt bdy bhb bhd bhh bhi bhr bhs bht bi- bib bid bih bii bir bis bit biy brb brd brh bri brr brs brt bry bsb bsd bsh bsi bsr bss bst bsy btb btd bth bti btr bts btt bty by- byd byh byi byr bys byt dbb dbd dbh dbi dbr dbs dbt dby ddb ddd ddh ddi ddr dds ddt ddy dh- dhb dhd dhh dhi dhr dhs dht di- dib did dih dii dir dis dit diy drb drd dri drr drs drt dry dsb dsd dsh dsi dsr dss dst dsy dtb dtd dth dti dtr dts dtt dty dy- dyb dyd dyr dys dyy h-i hbb hbd hbh hbi hbr hbs hbt hby hdb hdd hdh hdi hdr hds hdt hdy hhb hhd hhh hhi hhr hhs hht hhy hib hid hih hii hir his hit hr- hrb hrd hrh hri hrr hrs hrt hsb hsd hsh hsi hsr hss hst hsy htb htd hth hti htr hts htt hty hy- hyb hyd hyh hyi hyr hys hyt hyy i-d ibb ibd ibh ibi ibr ibs ibt iby idb idd idh idi idr ids idt idy ihb ihd ihh ihi ihr ihs iht ihy iib iid iih iii iir iis iit ir- irb ird iri irr irs irt iry is- isb isd ish isi isr iss ist isy itb itd ith iti its itt ity iyr iys iyt iyy rbb rbd rbh rbi rbr rbs rbt rdb rdd rdh rdi rdr rds rdt rdy rh- rhb rhd rhh rhi rhr rhs rht rib rid rih rii rir ris rit riy rrb rrd rrh rri rrr rrs rrt rsb rsd rsh rsi rsr rss rst rtb rtd rti rtr rts rtt rty ry- ryd ryr rys ryy sbb sbd sbh sbi sbr sbs sbt sby sdb sdd sdh sdi sdr sds sdt sdy sh- shb shd shh shi shr shs sht shy sib sid sih sii sir sis sit sr- srb srd srh sri srr srs srt sry ss- ssb ssd ssh ssi ssr sss sst stb std sth sti str sts stt sty sy- syb syd syh syi syr sys syt tbb tbd tbh tbi tbr tbs tbt tdb tdd tdh tdi tdr tds tdt tdy th- thb thd thh thi thr ths tht thy tib tid tih tii tir tis tit tiy trb trd trh tri trr trs trt try tsb tsd tsh tsi tsr tss tst tsy ttb ttd tth tti ttr tts ttt tty tyd tyr tys tyt ybi ybr ybs yby yds ydt ydy yhi yhs yht yid yih yii yir yis yit yrs yrt ysb ysi ysr yss yst ysy ytd yth ytr yts ytt yyb yys yyt yyy