ddd ddm ddn ddo ddr dds dmd dmm dmn dmo dmr dms dnd dnm dnn dno dnr dns dod dom don doo dor dos drd drm drn dro drr drs dsd dsm dsn dso dsr dss m-o m-r mdd mdm mdn mdo mdr mds mmd mmm mmn mmo mmr mms mnm mnn mno mnr mns mod mom mon moo mor mos mrd mrm mrn mro mrr mrs msd msm msn mso msr mss ndd ndm ndn ndo ndr nds nmd nmm nmn nmo nmr nms nnm nnn nno nns no- nod nom non noo nor nos nrd nrm nrn nro nrr nrs nsd nsm nsn nso nsr nss odd odm odn odo odr ods om- omd omm omn omo omr oms on- ond onn ono onr ons oo- ood oom oon ooo oor oos or- ord orm orn oro orr ors os- osd osm osn oso osr oss rdd rdm rdn rdo rdr rds rmd rmm rmn rmo rmr rms rnd rnm rnn rno rnr rns rod rom ron roo ror ros rrd rrm rrn rrr rrs rsd rsm rsn rso rsr rss sdd sdm sdn sdo sdr sds smd smm smn smo smr sms snd snm snn sno snr sns sod som son soo sor sos sr- srd srm srn sro srr srs ss- ssd ssm ssn sso ssr sss