-er c-- c-j ccc cce ccj cco ccr ccs ccv ce- cec cee cej ceo cer ces cev cjc cjr cjs co- coc coe coj coo cor cos cov crc cre crj cro crr crs crv csc cse csj cso csr css csv cvc cve cvo cvr cvs cvv ec- ecc ece ecj eco ecr ecs ecv eec eee eeo eer ees eev ejc ejo eo- eoc eoe eoo eor eos erc ere ero err ers erv es- esc ese eso esr ess esv evc eve evo evr evs evv jcc jce jco jcr jcs jec jee jej jeo jer jes jjc jjj jjr jjs joc joe joj joo jor jos jrc jro jrr jrs jsc jse jsj jso jsr jss jsv jvc jvs oc- occ ocj oco ocr ocs ocv oec oee oeo oer oes ojc oje ojo ojs oo- ooc ooo oor oos oov or- orc ore oro orr ors orv os- osc ose osj oso osr oss osv ov- ovc ove ovo ovs ovv rcc rce rcj rco rcr rcs rcv re- rec ree reo rer res rev rjc rjr roc roe roj roo ror ros rov rrc rrr rrs rsc rse rsj rso rsr rss rsv rvc rve rvo rvr rvs rvv scc sce scj sco scr scs scv se- sec see sej seo ser ses sev sjc sje sjj sjr sjs soc soe soj soo sor sos sov sr- src sre srj sro srr srs srv ss- ssc sse ssj sso ssr sss ssv svc sve svo svr svs svv v-e vcc vce vco vcr vcs vec vee veo ver ves vjs voc voe voo vor vos vov vrc vre vrr vrs vsc vse vso vsr vss vsv vvc vvo vvr vvs vvv