-er -ic c-- ccc cce cch cci ccp ccr ce- cec cee ceh cei cep cer ch- chc che chh chi chp chr ci- cic cie cih cii cip cir cpc cpe cph cpi cpp cpr crc cre crh cri crp crr ec- ecc ece ech eci ecr eec eee eep eer ehc ehe ehh ehi ehp ehr eic eie eii eip eir ep- epc epe eph epi epp epr erc ere erh eri erp err h-i hcc hce hch hci hcp hcr he- hec hee heh hei hep her hhc hhe hhh hhi hhp hhr hic hie hih hii hip hir hpc hpe hph hpi hpp hpr hr- hrc hre hrh hri hrp hrr icc ice ich ici icp icr ie- iec iee iei iep ier ihc ihe ihh ihi ihp ihr iic iie iih iii iip iir ipc ipe ipi ipp ipr ir- irc ire iri irp irr p-p pcc pce pch pci pcp pcr pec pee peh pei pep per phc phe phi php phr pic pie pih pii pip pir ppc ppe pph ppi ppp ppr prc pre prh pri prp prr rcc rce rch rci rcp rcr re- rec ree reh rei rep rer rh- rhc rhe rhh rhi rhp rhr ric rie rih rii rip rir rpc rpe rph rpi rpp rpr rrc rrh rri rrp rrr