-ey c-- ccc cce cco ccs ccu ccx ce- cec cee ceo ces ceu cex cey co- coc coe coo cos cou cox coy csc cse cso css csu csx csy cuc cue cuo cus cuu cuy cxc cxo cxs cxx cyc cye cyo cys ec- ecc ece eco ecs ecu ecx eec eee eeo ees eex eey eo- eoc eoe eoo eos eou es- esc ese eso ess esu esx esy eu- euc eue eus eux ex- exc exe exo exs exu exx exy eyc eye eyo eys oc- occ oco ocs ocu ocx oec oee oeo oes oex oey oo- ooc ooo oos oox os- osc ose oso oss osu osx ou- ouc oue ouo ous ox- oxc oxo oxx oxy oye oyo oys scc sce sco scs scu scx se- sec see seo ses seu sex sey soc soe soo sos sou sox soy ss- ssc sse sso sss ssu ssx suc sue suo sus suu sux suy sxc sxs sxu sy- syc sye sys syu syx ucc uce uco ucs ucu uec uee ues uey uoc uoe uoo uos uox usc use uso uss usu usx uuc uue uus uuu uxc uxo uxu uyc uyo uys uyu xcx xee xes xeu xex xoc xoo xos xox xsc xss xue xus xxo xxx xxy xyy ycc yce yco ycs ycu ycy yec yee yeo yes yex yey yoc yoe yoo yos you yox yoy ysc yse yso yss ysu ysy yue yuo yus yuu yux yuy yxe yxy yyc yye yys yyu yyy