c-- ccc cce cch ccs ccv ce- cec cee ceh ces cev ch- chc che chh chs chv csc cse csh css csv cvc cve cvh cvs cvv ec- ecc ece ech ecs ecv eec eee ees eev ehc ehe ehh ehs ehv es- esc ese esh ess esv evc eve evh evs evv hcc hce hch hcs hcv he- hec hee heh hes hev hhc hhe hhh hhs hhv hsc hse hsh hss hsv hv- hvc hvs hvv scc sce sch scs scv se- sec see seh ses sev sh- shc she shh shs shv ss- ssc sse ssh sss ssv svc sve svs svv v-e vcc vce vch vcs vec vee veh ves vh- vhc vhe vhs vsc vse vsh vss vsv vvc vvs vvv