-er -ic c-- ccc ccd cce cci ccm ccp ccr cdc cdd cde cdi cdm cdp cdr ce- cec ced cee cei cem cep cer ci- cic cid cie cii cim cip cir cmc cmd cme cmi cmm cmp cmr cpc cpd cpe cpi cpm cpp cpr crc crd cre cri crm crp crr dcc dcd dce dci dcm dcp dcr ddc ddd dde ddi ddm ddp ddr de- dec ded dee dei dem dep der di- dic did die dii dim dip dir dmc dmd dme dmi dmm dmp dmr dpc dpd dpe dpi dpm dpp dpr drc drd dre dri drm drp drr ec- ecc ecd ece eci ecm ecr ed- edc edd ede edi edm edp edr eec eed eee eem eep eer eic eid eie eii eim eip eir em- emc emd eme emi emm emp emr ep- epc epd epe epi epm epp epr erc erd ere eri erm erp err i-d icc icd ice ici icm icp icr idc idd ide idi idm idp idr ie- iec ied iee iei iem iep ier iic iid iie iii iim iip iir im- imc imd ime imi imm imp ipc ipd ipe ipi ipm ipp ipr ir- irc ird ire iri irm irp irr m-r mc- mcc mcd mce mci mcm mcp mcr mdc mdd mde mdi mdm mdp mdr mec med mee mei mem mep mer mi- mic mid mie mii mim mip mir mmc mmd mme mmi mmm mmp mmr mpc mpd mpe mpi mpm mpp mpr mrc mrd mre mri mrm mrp mrr p-p pcc pcd pce pci pcm pcp pcr pdc pdd pde pdi pdm pdp pdr pec ped pee pei pem pep per pic pid pie pii pim pip pir pmc pmd pme pmi pmm pmp pmr ppc ppd ppe ppi ppm ppp ppr prc prd pre pri prm prp prr rcc rcd rce rci rcm rcp rcr rdc rdd rde rdi rdm rdp rdr re- rec red ree rei rem rep rer ric rid rie rii rim rip rir rmc rmd rme rmi rmm rmp rmr rpc rpd rpe rpi rpm rpp rpr rrc rrd rri rrm rrp rrr