-er -ic c-- ccc ccd cce cci ccl ccp ccr cdc cdd cde cdi cdl cdp cdr ce- cec ced cee cei cel cep cer ci- cic cid cie cii cil cip cir cl- clc cld cle cli cll clp clr cpc cpd cpe cpi cpl cpp cpr crc crd cre cri crl crp crr dcc dcd dce dci dcl dcp dcr ddc ddd dde ddi ddl ddp ddr de- dec ded dee dei del dep der di- dic did die dii dil dip dir dl- dlc dld dle dli dll dlp dlr dpc dpd dpe dpi dpl dpp dpr drc drd dre dri drl drp drr ec- ecc ecd ece eci ecl ecr ed- edc edd ede edi edl edp edr eec eed eee eel eep eer eic eid eie eii eil eip eir elc eld ele eli ell elp elr ep- epc epd epe epi epl epp epr erc erd ere eri erl erp err i-d icc icd ice ici icl icp icr idc idd ide idi idl idp idr ie- iec ied iee iei iel iep ier iic iid iie iii iil iip iir il- ilc ild ile ili ill ilp ilr ipc ipd ipe ipi ipl ipp ipr ir- irc ird ire iri irl irp irr l-p lcc lcd lce lci lcl lcp lcr ldc ldd lde ldi ldl ldp ldr lec led lee lei lel lep ler lic lid lie lii lil lip lir llc lld lle lli lll llp llr lpc lpd lpe lpi lpl lpp lpr lrc lrd lri lrp lrr p-p pcc pcd pce pci pcl pcp pcr pdc pdd pde pdi pdl pdp pdr pec ped pee pei pel pep per pic pid pie pii pil pip pir plc pld ple pli pll plp plr ppc ppd ppe ppi ppl ppp ppr prc prd pre pri prl prp prr rcc rcd rce rci rcl rcp rcr rdc rdd rde rdi rdl rdp rdr re- rec red ree rei rel rep rer ric rid rie rii ril rip rir rlc rld rle rli rll rlp rlr rpc rpd rpe rpi rpl rpp rpr rrc rrd rri rrl rrp rrr