ddd dde ddm ddu ddx de- ded dee dem deu dex dmd dme dmm dmu dmx dud due dum dux dxd dxx ed- edd ede edm edu edx eed eee eem eex em- emd eme emm emu emx eu- eud eue eux ex- exd exe exu exx mdd mde mdm mdu mdx med mee mem meu mex mmd mme mmm mmu mmx mud mue mum muu mux mxd mxu udd ude udm udu udx ued uee uem um- umd ume umm umu uue uum uuu uxu xde xdm xed xee xem xeu xex xmd xmm xmu xmx xue xxx