c-- c-j ccc cce ccj cck ccs ccv ce- cec cee cej cek ces cev cjc cjk cjs ckc cks csc cse csj csk css csv cvc cve cvk cvs cvv ec- ecc ece ecj eck ecs ecv eec eee eek ees eev ejc ekc eke eks ekv es- esc ese esk ess esv evc eve evs evv jcc jce jck jcs jec jee jej jek jes jjc jjj jjk jjs jkk jks jkv jsc jse jsj jsk jss jsv jvc jvs kcc kce kck kcs ke- kec kee kek kes kev kjc kje kjs kkc kke kkk kks kkv ksc kse ksk kss ksv kvk kvs kvv scc sce scj sck scs scv se- sec see sej sek ses sev sjc sje sjj sjk sjs sk- skc ske skj skk sks ss- ssc sse ssj ssk sss ssv svc sve svk svs svv v-e vcc vce vcs vec vee vek ves vjs vsc vse vsk vss vsv vvc vvs vvv