c-- ccc cce ccm cct ccu ce- cec cee cem cet ceu cmc cme cmm cmt cmu ctc cte ctm ctt ctu cuc cue cum cut cuu ec- ecc ece ecm ect ecu eec eee eem eet em- emc eme emm emt emu etc ete etm ett etu eu- euc eue eut mc- mcc mce mcm mct mcu mec mee mem met meu mmc mme mmm mmt mmu mtc mte mtm mtt mtu muc mue mum mut muu tcc tce tcm tct tcu te- tec tee tem tet teu tmc tme tmm tmt tmu ttc tte ttm ttt ttu tuc tue tum tut tuu ucc uce ucm uct ucu uec uee uem uet um- umc ume umm umt umu utc ute utm utt utu uuc uue uum uut uuu