c-- ccc cce cch ccm ccs ce- cec cee ceh cem ces ch- chc che chh chm chs cmc cme cmh cmm cms csc cse csh csm css ec- ecc ece ech ecm ecs eec eee eem ees ehc ehe ehh ehm ehs em- emc eme emh emm ems es- esc ese esh esm ess hcc hce hch hcm hcs he- hec hee heh hem hes hhc hhe hhh hhm hhs hmc hme hmh hmm hms hsc hse hsh hsm hss mc- mcc mce mch mcm mcs mec mee meh mem mes mhc mhh mhm mhs mmc mme mmh mmm mms msc mse msh msm mss scc sce sch scm scs se- sec see seh sem ses sh- shc she shh shm shs smc sme smh smm sms ss- ssc sse ssh ssm sss