ddd ddi ddn ddp dds ddt ddy di- did dii din dip dis dit diy dnd dni dnn dnp dns dnt dny dpd dpi dpn dpp dps dpt dsd dsi dsn dsp dss dst dsy dtd dti dtn dtp dts dtt dty dy- dyd dyn dyp dys dyy i-d idd idi idn idp ids idt idy iid iii iin iip iis iit in- ind ini inn inp ins int iny ipd ipi ipn ipp ips ipt ipy is- isd isi isn isp iss ist isy itd iti itn itp its itt ity iys iyt iyy n-i ndd ndi ndn ndp nds ndt ndy nid nii nin nip nis nit nni nnn nnp nns nnt npd npi npn npp nps npt nsd nsi nsn nsp nss nst nsy ntd nti ntn ntp nts ntt nyd nyn nyp nys nyt nyy p-p pdd pdi pdn pdp pds pdt pid pii pin pip pis pit pn- pnd pni pnn pnp pns pnt pny ppd ppi ppn ppp pps ppt ps- psd psi psn psp pss pst psy pt- ptd pti ptn ptp pts ptt pty py- pyd pyn pys pyt sdd sdi sdn sdp sds sdt sdy sid sii sin sip sis sit snd sni snn snp sns snt sny spd spi spn spp sps spt spy ss- ssd ssi ssn ssp sss sst std sti stn stp sts stt sty sy- syd syi syn syp sys syt tdd tdi tdn tdp tds tdt tdy tid tii tin tip tis tit tiy tnd tni tnn tnp tns tnt tpd tpi tpn tpp tps tpt tsd tsi tsn tsp tss tst tsy ttd tti ttn ttp tts ttt tty tyd tyn typ tys tyt ydn yds ydt ydy yid yii yin yip yis yit ynd ynn ynp yns yny ypd yps ysi ysp yss yst ysy ytd ytn ytp yts ytt yys yyt yyy