c-- ccc ccd cce ccm ccs cct ccu cdc cdd cde cdm cds cdt cdu ce- cec ced cee cem ces cet ceu cmc cmd cme cmm cms cmt cmu csc csd cse csm css cst csu ctc ctd cte ctm cts ctt ctu cuc cud cue cum cus cut cuu dcc dcd dce dcm dcs dct dcu ddc ddd dde ddm dds ddt ddu de- dec ded dee dem des det deu dmc dmd dme dmm dms dmt dmu dsc dsd dse dsm dss dst dsu dtc dtd dte dtm dts dtt dtu duc dud due dum dus dut ec- ecc ecd ece ecm ecs ect ecu ed- edc edd ede edm eds edt edu eec eed eee eem ees eet em- emc emd eme emm ems emt emu es- esc esd ese esm ess est esu etc etd ete etm ets ett etu eu- euc eud eue eus eut mc- mcc mcd mce mcm mcs mct mcu mdc mdd mde mdm mds mdt mdu mec med mee mem mes met meu mmc mmd mme mmm mms mmt mmu msc msd mse msm mss mst msu mtc mtd mte mtm mts mtt mtu muc mud mue mum mus mut muu scc scd sce scm scs sct scu sdc sdd sde sdm sds sdt sdu se- sec sed see sem ses set seu smc smd sme smm sms smt smu ss- ssc ssd sse ssm sss sst ssu stc std ste stm sts stt stu suc sud sue sum sus sut suu tcc tcd tce tcm tcs tct tcu tdc tdd tde tdm tds tdt tdu te- tec ted tee tem tes tet teu tmc tmd tme tmm tms tmt tmu tsc tsd tse tsm tss tst tsu ttc ttd tte ttm tts ttt ttu tuc tud tue tum tus tut tuu ucc ucd uce ucm ucs uct ucu udc udd ude udm uds udt udu uec ued uee uem ues uet um- umc umd ume umm ums umt umu usc usd use usm uss ust usu utc utd ute utm uts utt utu uuc uue uum uus uut uuu