-er -ic c-- ccc ccd cce cci ccl ccp ccr ccs cdc cdd cde cdi cdl cdp cdr cds ce- cec ced cee cei cel cep cer ces ci- cic cid cie cii cil cip cir cis cl- clc cld cle cli cll clp clr cls cpc cpd cpe cpi cpl cpp cpr cps crc crd cre cri crl crp crr crs csc csd cse csi csl csp csr css dcc dcd dce dci dcl dcp dcr dcs ddc ddd dde ddi ddl ddp ddr dds de- dec ded dee dei del dep der des di- dic did die dii dil dip dir dis dl- dlc dld dle dli dll dlp dlr dls dpc dpd dpe dpi dpl dpp dpr dps drc drd dre dri drl drp drr drs dsc dsd dse dsi dsl dsp dsr dss ec- ecc ecd ece eci ecl ecr ecs ed- edc edd ede edi edl edp edr eds eec eed eee eel eep eer ees eic eid eie eii eil eip eir eis elc eld ele eli ell elp elr els ep- epc epd epe epi epl epp epr eps erc erd ere eri erl erp err ers es- esc esd ese esi esl esp esr ess i-d icc icd ice ici icl icp icr ics idc idd ide idi idl idp idr ids ie- iec ied iee iei iel iep ier ies iic iid iie iii iil iip iir iis il- ilc ild ile ili ill ilp ilr ils ipc ipd ipe ipi ipl ipp ipr ips ir- irc ird ire iri irl irp irr irs is- isc isd ise isi isl isp isr iss l-p lcc lcd lce lci lcl lcp lcr lcs ldc ldd lde ldi ldl ldp ldr lds lec led lee lei lel lep ler les lic lid lie lii lil lip lir lis llc lld lle lli lll llp llr lls lpc lpd lpe lpi lpl lpp lpr lps lrc lrd lri lrp lrr lrs lsc lsd lse lsi lsl lsp lsr lss p-p pcc pcd pce pci pcl pcp pcr pcs pdc pdd pde pdi pdl pdp pdr pds pec ped pee pei pel pep per pes pic pid pie pii pil pip pir pis plc pld ple pli pll plp plr pls ppc ppd ppe ppi ppl ppp ppr pps prc prd pre pri prl prp prr prs ps- psc psd pse psi psl psp psr pss rcc rcd rce rci rcl rcp rcr rcs rdc rdd rde rdi rdl rdp rdr rds re- rec red ree rei rel rep rer res ric rid rie rii ril rip rir ris rlc rld rle rli rll rlp rlr rls rpc rpd rpe rpi rpl rpp rpr rps rrc rrd rri rrl rrp rrr rrs rsc rsd rse rsi rsl rsp rsr rss scc scd sce sci scl scp scr scs sdc sdd sde sdi sdl sdp sdr sds se- sec sed see sei sel sep ser ses sic sid sie sii sil sip sir sis slc sld sle sli sll slp slr sls spc spd spe spi spl spp spr sps sr- src srd sre sri srl srp srr srs ss- ssc ssd sse ssi ssl ssp ssr sss