-er -ic c-- ccc cce cch cci ccp ccr ccv ce- cec cee ceh cei cep cer cev ch- chc che chh chi chp chr chv ci- cic cie cih cii cip cir civ cpc cpe cph cpi cpp cpr cpv crc cre crh cri crp crr crv cvc cve cvh cvi cvp cvr cvv ec- ecc ece ech eci ecr ecv eec eee eep eer eev ehc ehe ehh ehi ehp ehr ehv eic eie eii eip eir eiv ep- epc epe eph epi epp epr erc ere erh eri erp err erv evc eve evh evi evp evr evv h-i hcc hce hch hci hcp hcr hcv he- hec hee heh hei hep her hev hhc hhe hhh hhi hhp hhr hhv hic hie hih hii hip hir hiv hpc hpe hph hpi hpp hpr hpv hr- hrc hre hrh hri hrp hrr hrv hv- hvc hvp hvr hvv i-v icc ice ich ici icp icr icv ie- iec iee iei iep ier iev ihc ihe ihh ihi ihp ihr ihv iic iie iih iii iip iir ipc ipe ipi ipp ipr ipv ir- irc ire iri irp irr irv ivc ive ivi ivp ivr ivv p-p pcc pce pch pci pcp pcr pcv pec pee peh pei pep per pev phc phe phi php phr phv pic pie pih pii pip pir piv ppc ppe pph ppi ppp ppr ppv prc pre prh pri prp prr prv pvc pve pvh pvi pvp pvr pvv rcc rce rch rci rcp rcr rcv re- rec ree reh rei rep rer rev rh- rhc rhe rhh rhi rhp rhr rhv ric rie rih rii rip rir riv rpc rpe rph rpi rpp rpr rpv rrc rrh rri rrp rrr rvc rve rvh rvi rvp rvr rvv v-e vcc vce vch vci vcp vcr vec vee veh vei vep ver vh- vhc vhe vhi vhp vi- vic vie vii vip vir viv vpc vpe vph vpi vpp vpr vrc vre vrh vri vrp vrr vvc vvi vvr vvv