ddd dde ddi ddm ddo ddx de- ded dee dei dem deo dex di- did die dii dim dio dix dmd dme dmi dmm dmo dmx dod doe doi dom doo dox dxd dxi dxo dxx ed- edd ede edi edm edo edx eed eee eem eeo eex eid eie eii eim eio eix em- emd eme emi emm emo emx eo- eod eoe eoi eom eoo ex- exd exe exi exo exx i-d idd ide idi idm ido idx ie- ied iee iei iem iex iid iie iii iim iio iix im- imd ime imi imm imo imx io- iod ioe ioi iom ioo ixe ixi m-o mdd mde mdi mdm mdo mdx med mee mei mem meo mex mi- mid mie mii mim mio mix mmd mme mmi mmm mmo mmx mod moe moi mom moo mox mxd mxi o-i odd ode odi odm odo oed oee oei oem oeo oex oid oie oii oim oio om- omd ome omi omm omo omx oo- ood ooi oom ooo oox ox- oxi oxo oxx xde xdi xdm xed xee xem xex xie xii xio xix xmd xmi xmm xmo xmx xod xoi xom xoo xox xxi xxo xxx