-er c-- ccc ccd cce ccf ccn ccr ccs ccv cdc cdd cde cdf cdn cdr cds cdv ce- cec ced cee cef cen cer ces cev cfc cfd cfe cff cfn cfr cfs cfv cn- cnc cnd cne cnf cnn cnr cns cnv crc crd cre crf crn crr crs crv csc csd cse csf csn csr css csv cvc cvd cve cvf cvn cvr cvs cvv dcc dcd dce dcf dcn dcr dcs dcv ddc ddd dde ddf ddn ddr dds de- dec ded dee def den der des dev dfc dfd dfe dff dfn dfr dfs dfv dnc dnd dne dnf dnn dnr dns drc drd dre drn drr drs drv dsc dsd dse dsf dsn dsr dss dsv dvc dvd dve dvn dvr dvs ec- ecc ecd ece ecf ecn ecr ecs ecv ed- edc edd ede edf edn edr eds eec eed eee eef een eer ees eev ef- efc efd efe eff efr efs en- enc end ene enf enn enr ens env erc erd ere erf ern err ers erv es- esc esd ese esf esn esr ess esv evc evd eve evf evn evr evs evv fcc fcd fce fcf fcn fcr fcs fcv fdc fdd fde fdf fdn fdr fds fec fed fee fef fen fer fes fev ffc ffd ffe fff ffn ffr ffs ffv fnc fnd fne fnf fnn fnr fns fnv frc frd fre frf frn frr frs fsc fsd fse fsf fsn fsr fss fsv fvc fvd ncc ncd nce ncf ncn ncr ncs ncv ndc ndd nde ndf ndn ndr nds ndv ne- nec ned nee nef nen ner nes nev nfc nfd nfe nff nfn nfr nfs nfv nnc nne nnf nnn nns nnv nrc nrd nre nrf nrn nrr nrs nrv nsc nsd nse nsf nsn nsr nss nsv nvc nvd nve nvn nvv rcc rcd rce rcf rcn rcr rcs rcv rdc rdd rde rdf rdn rdr rds rdv re- rec red ree ref ren rer res rev rfc rfd rfe rff rfn rfr rfs rfv rnc rnd rnn rnr rns rnv rrc rrd rrf rrn rrr rrs rsc rsd rse rsf rsn rsr rss rsv rvc rvd rve rvf rvn rvr rvs rvv scc scd sce scf scn scr scs scv sdc sdd sde sdf sdn sdr sds sdv se- sec sed see sef sen ser ses sev sfc sfd sfe sff sfn sfr sfs sfv snc snd sne snf snn snr sns snv sr- src srd sre srf srn srr srs srv ss- ssc ssd sse ssf ssn ssr sss ssv svc svd sve svf svn svr svs svv v-e vcc vcd vce vcf vcn vcr vcs vdc vdd vde vdf vdr vds vdv vec ved vee vef ven ver ves vfc vfd vff vfn vfr vfs vfv vn- vnd vnf vnr vns vnv vrc vrd vre vrf vrn vrr vrs vsc vsd vse vsf vsn vsr vss vsv vvc vvr vvs vvv