-er c-- ccc ccd cce ccp ccr ccs ccv cdc cdd cde cdp cdr cds cdv ce- cec ced cee cep cer ces cev cpc cpd cpe cpp cpr cps cpv crc crd cre crp crr crs crv csc csd cse csp csr css csv cvc cvd cve cvp cvr cvs cvv dcc dcd dce dcp dcr dcs dcv ddc ddd dde ddp ddr dds de- dec ded dee dep der des dev dpc dpd dpe dpp dpr dps dpv drc drd dre drp drr drs drv dsc dsd dse dsp dsr dss dsv dvc dvd dve dvp dvr dvs ec- ecc ecd ece ecr ecs ecv ed- edc edd ede edp edr eds eec eed eee eep eer ees eev ep- epc epd epe epp epr eps erc erd ere erp err ers erv es- esc esd ese esp esr ess esv evc evd eve evp evr evs evv p-p pcc pcd pce pcp pcr pcs pcv pdc pdd pde pdp pdr pds pdv pec ped pee pep per pes pev ppc ppd ppe ppp ppr pps ppv prc prd pre prp prr prs prv ps- psc psd pse psp psr pss psv pvc pvd pve pvp pvr pvs pvv rcc rcd rce rcp rcr rcs rcv rdc rdd rde rdp rdr rds rdv re- rec red ree rep rer res rev rpc rpd rpe rpp rpr rps rpv rrc rrd rrp rrr rrs rsc rsd rse rsp rsr rss rsv rvc rvd rve rvp rvr rvs rvv scc scd sce scp scr scs scv sdc sdd sde sdp sdr sds sdv se- sec sed see sep ser ses sev spc spd spe spp spr sps spv sr- src srd sre srp srr srs srv ss- ssc ssd sse ssp ssr sss ssv svc svd sve svp svr svs svv v-e vcc vcd vce vcp vcr vcs vdc vdd vde vdp vdr vds vdv vec ved vee vep ver ves vpc vpd vpe vpp vpr vps vrc vrd vre vrp vrr vrs vsc vsd vse vsp vsr vss vsv vvc vvr vvs vvv