ddd ddm ddn dds ddt dmd dmm dmn dms dmt dmv dnd dnm dnn dns dnt dsd dsm dsn dss dst dsv dtd dtm dtn dts dtt dtv dvd dvm dvn dvs dvt m-v mdd mdm mdn mds mdt mdv mmd mmm mmn mms mmt mmv mnm mnn mns mnt msd msm msn mss mst msv mtd mtm mtn mts mtt mtv mvd mvm mvn mvs mvt mvv ndd ndm ndn nds ndt ndv nmd nmm nmn nms nmt nnm nnn nns nnt nnv nsd nsm nsn nss nst nsv ntd ntm ntn nts ntt ntv nvd nvm nvn nvt nvv sdd sdm sdn sds sdt sdv smd smm smn sms smt smv snd snm snn sns snt snv ss- ssd ssm ssn sss sst ssv std stm stn sts stt stv svd svm svn svs svt svv tdd tdm tdn tds tdt tdv tmd tmm tmn tms tmt tmv tnd tnm tnn tns tnt tsd tsm tsn tss tst tsv ttd ttm ttn tts ttt ttv tvd tvm tvn tvs tvt vdd vdm vds vdt vdv vm- vmd vmm vmn vmt vn- vnd vnm vns vnv vsd vsm vsn vss vst vsv vtm vts vtt vtv vvm vvs vvt vvv