c-- ccc ccd cce ccm ccs ccu cdc cdd cde cdm cds cdu ce- cec ced cee cem ces ceu cmc cmd cme cmm cms cmu csc csd cse csm css csu cuc cud cue cum cus cuu dcc dcd dce dcm dcs dcu ddc ddd dde ddm dds ddu de- dec ded dee dem des deu dmc dmd dme dmm dms dmu dsc dsd dse dsm dss dsu duc dud due dum dus ec- ecc ecd ece ecm ecs ecu ed- edc edd ede edm eds edu eec eed eee eem ees em- emc emd eme emm ems emu es- esc esd ese esm ess esu eu- euc eud eue eus mc- mcc mcd mce mcm mcs mcu mdc mdd mde mdm mds mdu mec med mee mem mes meu mmc mmd mme mmm mms mmu msc msd mse msm mss msu muc mud mue mum mus muu scc scd sce scm scs scu sdc sdd sde sdm sds sdu se- sec sed see sem ses seu smc smd sme smm sms smu ss- ssc ssd sse ssm sss ssu suc sud sue sum sus suu ucc ucd uce ucm ucs ucu udc udd ude udm uds udu uec ued uee uem ues um- umc umd ume umm ums umu usc usd use usm uss usu uuc uue uum uus uuu