ddd ddn ddo ddp ddr dds ddt ddz dnd dnn dno dnp dnr dns dnt dnz dod don doo dop dor dos dot doz dpd dpn dpo dpp dpr dps dpt dpz drd drn dro drp drr drs drt drz dsd dsn dso dsp dsr dss dst dsz dtd dtn dto dtp dtr dts dtt dtz dzd dzo dzp dzr dzs ndd ndn ndo ndp ndr nds ndt nnn nno nnp nns nnt nnz no- nod non noo nop nor nos not noz npd npn npo npp npr nps npt npz nrd nrn nro nrp nrr nrs nrt nrz nsd nsn nso nsp nsr nss nst nsz ntd ntn nto ntp ntr nts ntt ntz nzd nzo nzp nzs nzz odd odn odo odp odr ods odt on- ond onn ono onp onr ons ont oo- ood oon ooo oop oor oos oot op- opd opn opo opp opr ops opt or- ord orn oro orp orr ors ort orz os- osd osn oso osp osr oss ost ot- otd otn oto otp otr ots ott otz ozo ozs ozt ozz p-p pdd pdn pdo pdp pdr pds pdt pdz pn- pnd pnn pno pnp pnr pns pnt pod pon poo pop por pos pot poz ppd ppn ppo ppp ppr pps ppt ppz prd prn pro prp prr prs prt prz ps- psd psn pso psp psr pss pst pt- ptd ptn pto ptp ptr pts ptt ptz pzp pzt rdd rdn rdo rdp rdr rds rdt rnd rnn rno rnp rnr rns rnt rnz rod ron roo rop ror ros rot roz rpd rpn rpo rpp rpr rps rpt rpz rrd rrn rrp rrr rrs rrt rsd rsn rso rsp rsr rss rst rtd rtn rto rtp rtr rts rtt rtz rzo sdd sdn sdo sdp sdr sds sdt sdz snd snn sno snp snr sns snt sod son soo sop sor sos sot soz spd spn spo spp spr sps spt spz sr- srd srn sro srp srr srs srt ss- ssd ssn sso ssp ssr sss sst ssz std stn sto stp str sts stt stz szd szp szr tdd tdn tdo tdp tdr tds tdt tnd tnn tno tnp tnr tns tnt tnz to- tod ton too top tor tos tot toz tpd tpn tpo tpp tpr tps tpt tpz trd trn tro trp trr trs trt trz tsd tsn tso tsp tsr tss tst ttd ttn tto ttp ttr tts ttt tzd tzs zds zdt znd znn zno znp zns zo- zod zon zoo zor zos zot zpo zpp zpr zpt zro zrp zrs zst zsz ztr zzr zzs zzt zzz