ddd dde ddi ddm ddx de- ded dee dei dem dex di- did die dii dim dix dmd dme dmi dmm dmx dxd dxi dxx ed- edd ede edi edm edx eed eee eem eex eid eie eii eim eix em- emd eme emi emm emx ex- exd exe exi exx i-d idd ide idi idm idx ie- ied iee iei iem iex iid iie iii iim iix im- imd ime imi imm imx ixe ixi mdd mde mdi mdm mdx med mee mei mem mex mi- mid mie mii mim mix mmd mme mmi mmm mmx mxd mxi xde xdi xdm xed xee xem xex xie xii xix xmd xmi xmm xmx xxi xxx