-ey c-- ccc ccd cce cck cco ccs ccu cdc cdd cde cdk cdo cds cdu cdy ce- cec ced cee cek ceo ces ceu cey ckc ckd cko cks cky co- coc cod coe cok coo cos cou coy csc csd cse csk cso css csu csy cuc cud cue cuk cuo cus cuu cuy cyc cyd cye cyk cyo cys dcc dcd dce dck dco dcs dcu ddc ddd dde ddk ddo dds ddu ddy de- dec ded dee dek deo des deu dey dkc dke dkk dko dks dku doc dod doe dok doo dos dou doy dsc dsd dse dsk dso dss dsu dsy duc dud due duk duo dus duy dy- dyc dyd dye dyk dyo dys dyu dyy ec- ecc ecd ece eck eco ecs ecu ed- edc edd ede edk edo eds edu edy eec eed eee eek eeo ees eey ekc ekd eke eko eks eku eky eo- eoc eod eoe eok eoo eos eou es- esc esd ese esk eso ess esu esy eu- euc eud eue eus eyc eyd eye eyo eys kcc kcd kce kck kcs kcu kdc kde kdk kdo kds kdu kdy ke- kec ked kee kek keo kes key kkc kke kkk kks kku kky koc kod koe kok koo kos kou koy ksc ksd kse ksk kso kss ksu kuc kud kue kuk kus kuu kuy kyc kyd kye kyo kys kyu oc- occ ocd ock oco ocs ocu odc odd ode odo ods odu oec oed oee oeo oes oey okc okd oke okk oko oks oku oo- ooc ood ook ooo oos os- osc osd ose osk oso oss osu ou- ouc oud oue ouk ouo ous oyd oye oyo oys scc scd sce sck sco scs scu sdc sdd sde sdk sdo sds sdu sdy se- sec sed see sek seo ses seu sey sk- skc skd ske skk sko sks sku sky soc sod soe sok soo sos sou soy ss- ssc ssd sse ssk sso sss ssu suc sud sue suk suo sus suu suy sy- syc syd sye syk sys syu ucc ucd uce uck uco ucs ucu udc udd ude udk udo uds udu uec ued uee ues uey ukc uke ukk uku uoc uod uoe uok uoo uos usc usd use usk uso uss usu uuc uue uus uuu uyc uyo uys uyu ycc ycd yce yco ycs ycu ycy yde ydo yds ydy yec yed yee yek yeo yes yey ykk yoc yod yoe yok yoo yos you yoy ysc yse ysk yso yss ysu ysy yud yue yuk yuo yus yuu yuy yyc yye yys yyu yyy