-er -ic c-- ccc ccd cce cci ccn ccp ccr ccs cdc cdd cde cdi cdn cdp cdr cds ce- cec ced cee cei cen cep cer ces ci- cic cid cie cii cin cip cir cis cn- cnc cnd cne cni cnn cnp cnr cns cpc cpd cpe cpi cpn cpp cpr cps crc crd cre cri crn crp crr crs csc csd cse csi csn csp csr css dcc dcd dce dci dcn dcp dcr dcs ddc ddd dde ddi ddn ddp ddr dds de- dec ded dee dei den dep der des di- dic did die dii din dip dir dis dnc dnd dne dni dnn dnp dnr dns dpc dpd dpe dpi dpn dpp dpr dps drc drd dre dri drn drp drr drs dsc dsd dse dsi dsn dsp dsr dss ec- ecc ecd ece eci ecn ecr ecs ed- edc edd ede edi edn edp edr eds eec eed eee een eep eer ees eic eid eie eii ein eip eir eis en- enc end ene eni enn enp enr ens ep- epc epd epe epi epn epp epr eps erc erd ere eri ern erp err ers es- esc esd ese esi esn esp esr ess i-d icc icd ice ici icn icp icr ics idc idd ide idi idn idp idr ids ie- iec ied iee iei ien iep ier ies iic iid iie iii iin iip iir iis in- inc ind ine ini inn inp inr ins ipc ipd ipe ipi ipn ipp ipr ips ir- irc ird ire iri irn irp irr irs is- isc isd ise isi isn isp isr iss n-i ncc ncd nce nci ncn ncp ncr ncs ndc ndd nde ndi ndn ndp ndr nds ne- nec ned nee nei nen nep ner nes nic nid nie nii nin nip nir nis nnc nne nni nnn nnp nns npc npd npe npi npn npp npr nps nrc nrd nre nri nrn nrp nrr nrs nsc nsd nse nsi nsn nsp nsr nss p-p pcc pcd pce pci pcn pcp pcr pcs pdc pdd pde pdi pdn pdp pdr pds pec ped pee pei pen pep per pes pic pid pie pii pin pip pir pis pn- pnc pnd pne pni pnn pnp pnr pns ppc ppd ppe ppi ppn ppp ppr pps prc prd pre pri prn prp prr prs ps- psc psd pse psi psn psp psr pss rcc rcd rce rci rcn rcp rcr rcs rdc rdd rde rdi rdn rdp rdr rds re- rec red ree rei ren rep rer res ric rid rie rii rin rip rir ris rnc rnd rni rnn rnp rnr rns rpc rpd rpe rpi rpn rpp rpr rps rrc rrd rri rrn rrp rrr rrs rsc rsd rse rsi rsn rsp rsr rss scc scd sce sci scn scp scr scs sdc sdd sde sdi sdn sdp sdr sds se- sec sed see sei sen sep ser ses sic sid sie sii sin sip sir sis snc snd sne sni snn snp snr sns spc spd spe spi spn spp spr sps sr- src srd sre sri srn srp srr srs ss- ssc ssd sse ssi ssn ssp ssr sss