c-- ccc cce ccl ccm ccs ccu ce- cec cee cel cem ces ceu cl- clc cle cll clm cls clu cmc cme cml cmm cms cmu csc cse csl csm css csu cuc cue cul cum cus cuu ec- ecc ece ecl ecm ecs ecu eec eee eel eem ees elc ele ell elm els elu em- emc eme eml emm ems emu es- esc ese esl esm ess esu eu- euc eue eul eus lcc lce lcl lcm lcs lcu lec lee lel lem les leu llc lle lll llm lls llu lmc lme lml lmm lms lmu lsc lse lsl lsm lss lsu luc lue lul lum lus luu mc- mcc mce mcl mcm mcs mcu mec mee mel mem mes meu mlc mle mll mlm mls mlu mmc mme mml mmm mms mmu msc mse msl msm mss msu muc mue mul mum mus muu scc sce scl scm scs scu se- sec see sel sem ses seu slc sle sll slm sls slu smc sme sml smm sms smu ss- ssc sse ssl ssm sss ssu suc sue sul sum sus suu ucc uce ucl ucm ucs ucu uec uee uel uem ues ulc ule ull ulm uls ulu um- umc ume uml umm ums umu usc use usl usm uss usu uuc uue uum uus uuu