c-- ccc cce ccm cct ccu ccx ce- cec cee cem cet ceu cex cmc cme cmm cmt cmu cmx ctc cte ctm ctt ctu ctx cuc cue cum cut cuu cxc cxt cxx ec- ecc ece ecm ect ecu ecx eec eee eem eet eex em- emc eme emm emt emu emx etc ete etm ett etu etx eu- euc eue eut eux ex- exc exe ext exu exx mc- mcc mce mcm mct mcu mcx mec mee mem met meu mex mmc mme mmm mmt mmu mmx mtc mte mtm mtt mtu mtx muc mue mum mut muu mux mxc mxu t-x tcc tce tcm tct tcu tcx te- tec tee tem tet teu tex tmc tme tmm tmt tmu tmx ttc tte ttm ttt ttu ttx tuc tue tum tut tuu tux txe txt txu ucc uce ucm uct ucu uec uee uem uet um- umc ume umm umt umu utc ute utm utt utu utx uuc uue uum uut uuu uxc uxt uxu xcx xee xem xet xeu xex xmc xmm xmt xmu xmx xtc xtm xtx xue xxx