ddd dde ddo ddt ddu ddx de- ded dee deo det deu dex dod doe doo dot dou dox dtd dte dto dtt dtu dtx dud due duo dut dux dxd dxo dxt dxx ed- edd ede edo edt edu edx eed eee eeo eet eex eo- eod eoe eoo eot eou etd ete eto ett etu etx eu- eud eue eut eux ex- exd exe exo ext exu exx odd ode odo odt odu oed oee oeo oet oex oo- ood ooo oot oox ot- otd ote oto ott otu ou- oud oue ouo out ox- oxo oxt oxx t-x tdd tde tdo tdt tdu tdx te- ted tee teo tet teu tex to- tod toe too tot tou tox ttd tte tto ttt ttu ttx tud tue tuo tut tuu tux txe txt txu udd ude udo udt udu udx ued uee uet uod uoe uoo uot uox utd ute uto utt utu utx uue uut uuu uxo uxt uxu xde xdt xed xee xet xeu xex xod xoo xot xox xtx xue xxo xxx