ddd dde ddf ddg ddi de- ded dee def deg dei dfd dfe dff dfg dfi dgd dge dgf dgg dgi di- did die dif dig dii ed- edd ede edf edg edi eed eee eef eeg ef- efd efe eff efg efi egd ege egf egg egi eid eie eif eig eii fdd fde fdf fdg fdi fed fee fef feg fei ffd ffe fff ffg ffi fgd fge fgf fgg fgi fid fie fif fig fii g-d gdd gde gdf gdi ge- ged gee gef geg gei gfd gfe gff gfi ggd ggg ggi gid gie gif gig gii i-d i-f idd ide idf idg idi ie- ied iee ief ieg iei ifd ife iff ifg ifi igd ige igf igg igi iid iie iif iii