c-- ccc cce ccm cco ccs ccu ce- cec cee cem ceo ces ceu cmc cme cmm cmo cms cmu co- coc coe com coo cos cou csc cse csm cso css csu cuc cue cum cuo cus cuu ec- ecc ece ecm eco ecs ecu eec eee eem eeo ees em- emc eme emm emo ems emu eo- eoc eoe eom eoo eos eou es- esc ese esm eso ess esu eu- euc eue eus m-o mc- mcc mce mcm mco mcs mcu mec mee mem meo mes meu mmc mme mmm mmo mms mmu moc moe mom moo mos mou msc mse msm mso mss msu muc mue mum mus muu oc- occ ocm oco ocs ocu oec oee oem oeo oes om- omc ome omm omo oms omu oo- ooc oom ooo oos os- osc ose osm oso oss osu ou- ouc oue oum ouo ous scc sce scm sco scs scu se- sec see sem seo ses seu smc sme smm smo sms smu soc soe som soo sos sou ss- ssc sse ssm sso sss ssu suc sue sum suo sus suu ucc uce ucm uco ucs ucu uec uee uem ues um- umc ume umm umo ums umu uoc uoe uom uoo uos usc use usm uso uss usu uuc uue uum uus uuu