ddd dde ddf ddg ddi ddp de- ded dee def deg dei dep dfd dfe dff dfg dfi dfp dgd dge dgf dgg dgi dgp di- did die dif dig dii dip dpd dpe dpf dpg dpi dpp ed- edd ede edf edg edi edp eed eee eef eeg eep ef- efd efe eff efg efi efp egd ege egf egg egi egp eid eie eif eig eii eip ep- epd epe epf epg epi epp fdd fde fdf fdg fdi fdp fed fee fef feg fei fep ffd ffe fff ffg ffi ffp fgd fge fgf fgg fgi fgp fid fie fif fig fii fip fpd fpe fpg fpi fpp g-d g-p gdd gde gdf gdi gdp ge- ged gee gef geg gei gep gfd gfe gff gfi gfp ggd ggg ggi ggp gid gie gif gig gii gip gpd gpe gpf gpg gpi gpp i-d i-f idd ide idf idg idi idp ie- ied iee ief ieg iei iep ifd ife iff ifg ifi ifp igd ige igf igg igi igp iid iie iif iii iip ipd ipe ipf ipg ipi ipp p-p pdd pde pdf pdg pdi pdp ped pee pef peg pei pep pfd pfe pff pfg pfi pfp pgd pge pgf pgg pgi pgp pid pie pif pig pii pip ppd ppe ppf ppg ppi ppp