-ic c-- ccc cce cci ccl ccm ccs ce- cec cee cei cel cem ces ci- cic cie cii cil cim cis cl- clc cle cli cll clm cls cmc cme cmi cml cmm cms csc cse csi csl csm css ec- ecc ece eci ecl ecm ecs eec eee eel eem ees eic eie eii eil eim eis elc ele eli ell elm els em- emc eme emi eml emm ems es- esc ese esi esl esm ess icc ice ici icl icm ics ie- iec iee iei iel iem ies iic iie iii iil iim iis il- ilc ile ili ill ilm ils im- imc ime imi iml imm ims is- isc ise isi isl ism iss lcc lce lci lcl lcm lcs lec lee lei lel lem les lic lie lii lil lim lis llc lle lli lll llm lls lmc lme lmi lml lmm lms lsc lse lsi lsl lsm lss mc- mcc mce mci mcl mcm mcs mec mee mei mel mem mes mi- mic mie mii mil mim mis mlc mle mli mll mlm mls mmc mme mmi mml mmm mms msc mse msi msl msm mss scc sce sci scl scm scs se- sec see sei sel sem ses sic sie sii sil sim sis slc sle sli sll slm sls smc sme smi sml smm sms ss- ssc sse ssi ssl ssm sss