-ey c-- ccc cce cco ccs ce- cec cee ceo ces cey co- coc coe coo cos coy csc cse cso css csy cyc cye cyo cys ec- ecc ece eco ecs eec eee eeo ees eey eo- eoc eoe eoo eos es- esc ese eso ess esy eyc eye eyo eys oc- occ oco ocs oec oee oeo oes oey oo- ooc ooo oos os- osc ose oso oss oye oyo oys scc sce sco scs se- sec see seo ses sey soc soe soo sos soy ss- ssc sse sso sss sy- syc sye sys ycc yce yco ycs ycy yec yee yeo yes yey yoc yoe yoo yos yoy ysc yse yso yss ysy yyc yye yys yyy