c-- ccc cce cch ccl ccm ccs ce- cec cee ceh cel cem ces ch- chc che chh chl chm chs cl- clc cle clh cll clm cls cmc cme cmh cml cmm cms csc cse csh csl csm css ec- ecc ece ech ecl ecm ecs eec eee eel eem ees ehc ehe ehh ehl ehm ehs elc ele elh ell elm els em- emc eme emh eml emm ems es- esc ese esh esl esm ess hcc hce hch hcl hcm hcs he- hec hee heh hel hem hes hhc hhe hhh hhl hhm hhs hlc hle hlh hll hlm hls hmc hme hmh hml hmm hms hsc hse hsh hsl hsm hss lcc lce lch lcl lcm lcs lec lee leh lel lem les lhc lhh lhs llc lle lll llm lls lmc lme lmh lml lmm lms lsc lse lsh lsl lsm lss mc- mcc mce mch mcl mcm mcs mec mee meh mel mem mes mhc mhh mhl mhm mhs mlc mle mlh mll mlm mls mmc mme mmh mml mmm mms msc mse msh msl msm mss scc sce sch scl scm scs se- sec see seh sel sem ses sh- shc she shh shl shm shs slc sle slh sll slm sls smc sme smh sml smm sms ss- ssc sse ssh ssl ssm sss