ddd ddl ddm ddn dds ddt dl- dld dll dlm dls dlt dmd dml dmm dmn dms dmt dnd dnl dnm dnn dns dnt dsd dsl dsm dsn dss dst dtd dtl dtm dtn dts dtt ldd ldl ldm ldn lds ldt lld lll llm lln lls llt lmd lml lmm lmn lms lmt lnd lnl lnm lnn lns lnt lsd lsl lsm lsn lss lst ltd ltl ltm lts ltt mdd mdl mdm mdn mds mdt mld mll mlm mln mls mlt mmd mml mmm mmn mms mmt mnl mnm mnn mns mnt msd msl msm msn mss mst mtd mtl mtm mtn mts mtt ndd ndl ndm ndn nds ndt nld nll nlm nln nls nlt nmd nml nmm nmn nms nmt nnl nnm nnn nns nnt nsd nsl nsm nsn nss nst ntd ntm ntn nts ntt sdd sdl sdm sdn sds sdt sld sll slm sln sls slt smd sml smm smn sms smt snd snl snm snn sns snt ss- ssd ssl ssm ssn sss sst std stl stm stn sts stt tdd tdl tdm tdn tds tdt tld tll tlm tln tls tlt tmd tml tmm tmn tms tmt tnd tnl tnm tnn tns tnt tsd tsl tsm tsn tss tst ttd ttl ttm ttn tts ttt