ddd dde ddf ddg ddo dds de- ded dee def deg deo des dfd dfe dff dfg dfo dfs dgd dge dgf dgg dgs dod doe dof dog doo dos dsd dse dsf dsg dso dss ed- edd ede edf edg edo eds eed eee eef eeg eeo ees ef- efd efe eff efg efo efs egd ege egf egg ego egs eo- eod eoe eof eog eoo eos es- esd ese esf esg eso ess fdd fde fdf fdg fdo fds fed fee fef feg feo fes ffd ffe fff ffg ffo ffs fgd fge fgf fgg fgs foe fof fog foo fos fsd fse fsf fsg fso fss g-d gdd gde gdf gdo gds ge- ged gee gef geg geo ges gfd gfe gff gfo gfs ggd ggg ggo ggs god goe gof gog goo gos gsd gse gsf gsg gso gss odd ode odf odg odo ods oed oee oef oeg oeo oes of- ofd ofe off ofg ofo ofs ogd oge ogf ogg ogo ogs oo- ood oof oog ooo oos os- osd ose osf osg oso oss sdd sde sdf sdg sdo sds se- sed see sef seg seo ses sfd sfe sff sfg sfo sfs sgd sge sgf sgg sgo sgs sod soe sof sog soo sos ss- ssd sse ssf ssg sso sss