-th ddd ddh ddi ddo dds ddt ddx ddy dh- dhd dhh dhi dho dhs dht di- did dih dii dio dis dit dix diy dod doh doi doo dos dot dox doy dsd dsh dsi dso dss dst dsx dsy dtd dth dti dto dts dtt dtx dty dxd dxi dxo dxs dxt dxx dy- dyd dyo dys dyy h-i hdd hdh hdi hdo hds hdt hdx hdy hhd hhh hhi hho hhs hht hhy hid hih hii hio his hit hix hod hoh hoi hoo hos hot hox hoy hsd hsh hsi hss hst hsx hsy htd hth hti hto hts htt htx hty hxd hy- hyd hyh hyi hyo hys hyt hyy i-d idd idh idi ido ids idt idx idy ihd ihh ihi iho ihs iht ihy iid iih iii iio iis iit iix io- iod ioh ioi ioo ios iot is- isd ish isi iso iss ist isy itd ith iti ito its itt itx ity ixi ixy iyo iys iyt iyy o-i odd odh odi odo ods odt ohd ohh ohi oho ohs oht oid oii oio ois oit oo- ood ooh ooi ooo oos oot oox os- osd osh osi oso oss ost osx ot- otd oth oti oto ots ott ox- oxi oxo oxt oxx oxy oyd oyi oyo oys sdd sdh sdi sdo sds sdt sdy sh- shd shh shi sho shs sht shy sid sih sii sio sis sit six sod soh soi soo sos sot sox soy ss- ssd ssh ssi sso sss sst ssx std sth sti sto sts stt stx sty sxi sxs sxt sy- syd syh syi sys syt syx t-x tdd tdh tdi tdo tds tdt tdx tdy th- thd thh thi tho ths tht thx thy tid tih tii tio tis tit tix tiy to- tod toh toi too tos tot tox toy tsd tsh tsi tso tss tst tsx tsy ttd tth tti tto tts ttt ttx tty txi txs txt tyd tyo tys tyt xdh xdi xds xdt xhd xht xii xio xis xit xix xod xoi xoo xos xot xox xsi xss xst xti xts xtx xty xxi xxo xxx xxy xyy ydo yds ydt ydy yhi yhs yht yid yih yii yio yis yit yod yoi yoo yos yot yox yoy ysi yso yss yst ysy ytd yth yto yts ytt yxy yys yyt yyy