-er -ic c-- ccc ccd cce cch cci ccp ccr cdc cdd cde cdh cdi cdp cdr ce- cec ced cee ceh cei cep cer ch- chc chd che chh chi chp chr ci- cic cid cie cih cii cip cir cpc cpd cpe cph cpi cpp cpr crc crd cre crh cri crp crr dcc dcd dce dci dcp dcr ddc ddd dde ddh ddi ddp ddr de- dec ded dee deh dei dep der dh- dhc dhd dhe dhh dhi dhp dhr di- dic did die dih dii dip dir dpc dpd dpe dph dpi dpp dpr drc drd dre dri drp drr ec- ecc ecd ece ech eci ecr ed- edc edd ede edh edi edp edr eec eed eee eep eer ehc ehd ehe ehh ehi ehp ehr eic eid eie eii eip eir ep- epc epd epe eph epi epp epr erc erd ere erh eri erp err h-i hcc hcd hce hch hci hcp hcr hdc hdd hde hdh hdi hdp hdr he- hec hed hee heh hei hep her hhc hhd hhe hhh hhi hhp hhr hic hid hie hih hii hip hir hpc hpd hpe hph hpi hpp hpr hr- hrc hrd hre hrh hri hrp hrr i-d icc icd ice ich ici icp icr idc idd ide idh idi idp idr ie- iec ied iee iei iep ier ihc ihd ihe ihh ihi ihp ihr iic iid iie iih iii iip iir ipc ipd ipe ipi ipp ipr ir- irc ird ire iri irp irr p-p pcc pcd pce pch pci pcp pcr pdc pdd pde pdh pdi pdp pdr pec ped pee peh pei pep per phc phd phe phi php phr pic pid pie pih pii pip pir ppc ppd ppe pph ppi ppp ppr prc prd pre prh pri prp prr rcc rcd rce rch rci rcp rcr rdc rdd rde rdh rdi rdp rdr re- rec red ree reh rei rep rer rh- rhc rhd rhe rhh rhi rhp rhr ric rid rie rih rii rip rir rpc rpd rpe rph rpi rpp rpr rrc rrd rrh rri rrp rrr