ddd ddf ddl ddm ddn dds ddt dfd dff dfl dfm dfn dfs dft dl- dld dlf dll dlm dls dlt dmd dmf dml dmm dmn dms dmt dnd dnf dnl dnm dnn dns dnt dsd dsf dsl dsm dsn dss dst dtd dtf dtl dtm dtn dts dtt fdd fdf fdl fdm fdn fds fdt ffd fff ffl ffm ffn ffs fft fld flf fll flm fln fls flt fmd fmf fml fmm fmn fms fmt fnd fnf fnl fnm fnn fns fnt fsd fsf fsl fsm fsn fss fst ftd ftf ftl ftm ftn fts ftt ldd ldf ldl ldm ldn lds ldt lfd lff lfl lfm lfn lfs lft lld llf lll llm lln lls llt lmd lmf lml lmm lmn lms lmt lnd lnl lnm lnn lns lnt lsd lsf lsl lsm lsn lss lst ltd ltf ltl ltm lts ltt m-f mdd mdf mdl mdm mdn mds mdt mfd mff mfl mfm mfn mfs mft mld mlf mll mlm mln mls mlt mmd mmf mml mmm mmn mms mmt mnf mnl mnm mnn mns mnt msd msf msl msm msn mss mst mtd mtf mtl mtm mtn mts mtt ndd ndf ndl ndm ndn nds ndt nfd nff nfl nfn nfs nft nld nlf nll nlm nln nls nlt nmd nml nmm nmn nms nmt nnf nnl nnm nnn nns nnt nsd nsf nsl nsm nsn nss nst ntd ntf ntm ntn nts ntt sdd sdf sdl sdm sdn sds sdt sfd sff sfl sfm sfn sfs sft sld slf sll slm sln sls slt smd smf sml smm smn sms smt snd snf snl snm snn sns snt ss- ssd ssf ssl ssm ssn sss sst std stf stl stm stn sts stt tdd tdf tdl tdm tdn tds tdt tfd tff tfl tfm tfn tfs tft tld tlf tll tlm tln tls tlt tmd tmf tml tmm tmn tms tmt tnd tnf tnl tnm tnn tns tnt tsd tsf tsl tsm tsn tss tst ttd ttf ttl ttm ttn tts ttt