ddd dde ddf ddg ddo ddt de- ded dee def deg deo det dfd dfe dff dfg dfo dft dgd dge dgf dgg dgt dod doe dof dog doo dot dtd dte dtf dtg dto dtt ed- edd ede edf edg edo edt eed eee eef eeg eeo eet ef- efd efe eff efg efo eft egd ege egf egg ego egt eo- eod eoe eof eog eoo eot etd ete etf etg eto ett fdd fde fdf fdg fdo fdt fed fee fef feg feo fet ffd ffe fff ffg ffo fft fgd fge fgf fgg fgt foe fof fog foo fot ftd fte ftf ftg fto ftt g-d gdd gde gdf gdo gdt ge- ged gee gef geg geo get gfd gfe gff gfo gft ggd ggg ggo ggt god goe gof gog goo got gtd gte gtf gtg gto gtt odd ode odf odg odo odt oed oee oef oeg oeo oet of- ofd ofe off ofg ofo oft ogd oge ogf ogg ogo ogt oo- ood oof oog ooo oot ot- otd ote otf otg oto ott tdd tde tdf tdg tdo tdt te- ted tee tef teg teo tet tfd tfe tff tfg tfo tft tge tgf tgg tgo tgt to- tod toe tof tog too tot ttd tte ttf ttg tto ttt