-ey c-- ccc cce cco ccs ccv ce- cec cee ceo ces cev cey co- coc coe coo cos cov coy csc cse cso css csv csy cvc cve cvo cvs cvv cyc cye cyo cys ec- ecc ece eco ecs ecv eec eee eeo ees eev eey eo- eoc eoe eoo eos es- esc ese eso ess esv esy evc eve evo evs evv evy eyc eye eyo eys oc- occ oco ocs ocv oec oee oeo oes oey oo- ooc ooo oos oov os- osc ose oso oss osv ov- ovc ove ovo ovs ovv oye oyo oys scc sce sco scs scv se- sec see seo ses sev sey soc soe soo sos sov soy ss- ssc sse sso sss ssv svc sve svo svs svv svy sy- syc sye sys v-e vcc vce vco vcs vcy vec vee veo ves vey voc voe voo vos vov voy vsc vse vso vss vsv vvc vvo vvs vvv vye ycc yce yco ycs ycv ycy yec yee yeo yes yev yey yoc yoe yoo yos yoy ysc yse yso yss ysy yve yvo yvy yyc yye yys yyy