ddd dde ddf ddg ddl dds de- ded dee def deg del des dfd dfe dff dfg dfl dfs dgd dge dgf dgg dgl dgs dl- dld dle dlf dlg dll dls dsd dse dsf dsg dsl dss ed- edd ede edf edg edl eds eed eee eef eeg eel ees ef- efd efe eff efg efl efs egd ege egf egg egl egs eld ele elf elg ell els es- esd ese esf esg esl ess fdd fde fdf fdg fdl fds fed fee fef feg fel fes ffd ffe fff ffg ffl ffs fgd fge fgf fgg fgl fgs fld fle flf flg fll fls fsd fse fsf fsg fsl fss g-d gdd gde gdf gdl gds ge- ged gee gef geg gel ges gfd gfe gff gfl gfs ggd ggg ggs gld gle glf glg gll gls gsd gse gsf gsg gsl gss ldd lde ldf ldg ldl lds led lee lef leg lel les lfd lfe lff lfg lfl lfs lgd lge lgf lgg lgl lgs lld lle llf llg lll lls lsd lse lsf lsg lsl lss sdd sde sdf sdg sdl sds se- sed see sef seg sel ses sfd sfe sff sfg sfl sfs sgd sge sgf sgg sgl sgs sld sle slf slg sll sls ss- ssd sse ssf ssg ssl sss