-er c-- ccc ccd cce ccn ccp ccr ccs cdc cdd cde cdn cdp cdr cds ce- cec ced cee cen cep cer ces cn- cnc cnd cne cnn cnp cnr cns cpc cpd cpe cpn cpp cpr cps crc crd cre crn crp crr crs csc csd cse csn csp csr css dcc dcd dce dcn dcp dcr dcs ddc ddd dde ddn ddp ddr dds de- dec ded dee den dep der des dnc dnd dne dnn dnp dnr dns dpc dpd dpe dpn dpp dpr dps drc drd dre drn drp drr drs dsc dsd dse dsn dsp dsr dss ec- ecc ecd ece ecn ecr ecs ed- edc edd ede edn edp edr eds eec eed eee een eep eer ees en- enc end ene enn enp enr ens ep- epc epd epe epn epp epr eps erc erd ere ern erp err ers es- esc esd ese esn esp esr ess ncc ncd nce ncn ncp ncr ncs ndc ndd nde ndn ndp ndr nds ne- nec ned nee nen nep ner nes nnc nne nnn nnp nns npc npd npe npn npp npr nps nrc nrd nre nrn nrp nrr nrs nsc nsd nse nsn nsp nsr nss p-p pcc pcd pce pcn pcp pcr pcs pdc pdd pde pdn pdp pdr pds pec ped pee pen pep per pes pn- pnc pnd pne pnn pnp pnr pns ppc ppd ppe ppn ppp ppr pps prc prd pre prn prp prr prs ps- psc psd pse psn psp psr pss rcc rcd rce rcn rcp rcr rcs rdc rdd rde rdn rdp rdr rds re- rec red ree ren rep rer res rnc rnd rnn rnp rnr rns rpc rpd rpe rpn rpp rpr rps rrc rrd rrn rrp rrr rrs rsc rsd rse rsn rsp rsr rss scc scd sce scn scp scr scs sdc sdd sde sdn sdp sdr sds se- sec sed see sen sep ser ses snc snd sne snn snp snr sns spc spd spe spn spp spr sps sr- src srd sre srn srp srr srs ss- ssc ssd sse ssn ssp ssr sss