c-- ccc ccd cce cco cct ccu ccx cdc cdd cde cdo cdt cdu cdx ce- cec ced cee ceo cet ceu cex co- coc cod coe coo cot cou cox ctc ctd cte cto ctt ctu ctx cuc cud cue cuo cut cuu cxc cxo cxt cxx dcc dcd dce dco dct dcu dcx ddc ddd dde ddo ddt ddu ddx de- dec ded dee deo det deu dex doc dod doe doo dot dou dox dtc dtd dte dto dtt dtu dtx duc dud due duo dut dux dxc dxd dxo dxt dxx ec- ecc ecd ece eco ect ecu ecx ed- edc edd ede edo edt edu edx eec eed eee eeo eet eex eo- eoc eod eoe eoo eot eou etc etd ete eto ett etu etx eu- euc eud eue eut eux ex- exc exd exe exo ext exu exx oc- occ ocd oco oct ocu ocx odc odd ode odo odt odu oec oed oee oeo oet oex oo- ooc ood ooo oot oox ot- otc otd ote oto ott otu ou- ouc oud oue ouo out ox- oxc oxo oxt oxx t-x tcc tcd tce tco tct tcu tcx tdc tdd tde tdo tdt tdu tdx te- tec ted tee teo tet teu tex to- toc tod toe too tot tou tox ttc ttd tte tto ttt ttu ttx tuc tud tue tuo tut tuu tux txe txt txu ucc ucd uce uco uct ucu udc udd ude udo udt udu udx uec ued uee uet uoc uod uoe uoo uot uox utc utd ute uto utt utu utx uuc uue uut uuu uxc uxo uxt uxu xcd xcx xdc xde xdt xed xee xet xeu xex xoc xod xoo xot xox xtc xtx xue xxo xxx