ddd dde ddi ddo ddx de- ded dee dei deo dev dex di- did die dii dio div dix dod doe doi doo dov dox dvd dve dvi dvx dxd dxi dxo dxx ed- edd ede edi edo edx eed eee eeo eev eex eid eie eii eio eiv eix eo- eod eoe eoi eoo evd eve evi evo evv ex- exd exe exi exo exx i-d i-v idd ide idi ido idv idx ie- ied iee iei iev iex iid iie iii iio iix io- iod ioe ioi ioo iov ivd ive ivi ivo ivv ivx ixe ixi o-i odd ode odi odo odv oed oee oei oeo oex oid oie oii oio oiv oo- ood ooi ooo oov oox ov- ovd ove ovi ovo ovv ox- oxi oxo oxx v-e vdd vde vdi vdo vdv vdx ved vee vei veo vex vi- vid vie vii vio viv vix vod voe voi voo vov vox vvi vvo vvv vxd vxv xde xdi xdv xed xee xev xex xie xii xio xiv xix xod xoi xoo xov xox xvi xxi xxo xxv xxx