-ey c-- ccc ccd cce cck ccn cco ccs cdc cdd cde cdk cdn cdo cds cdy ce- cec ced cee cek cen ceo ces cey ckc ckd cko cks cky cn- cnc cnd cne cnn cno cns cny co- coc cod coe cok con coo cos coy csc csd cse csk csn cso css csy cyc cyd cye cyk cyn cyo cys dcc dcd dce dck dcn dco dcs ddc ddd dde ddk ddn ddo dds ddy de- dec ded dee dek den deo des dey dkc dke dkk dko dks dnc dnd dne dnk dnn dno dns dny doc dod doe dok don doo dos doy dsc dsd dse dsk dsn dso dss dsy dy- dyc dyd dye dyk dyn dyo dys dyy ec- ecc ecd ece eck ecn eco ecs ed- edc edd ede edk edn edo eds edy eec eed eee eek een eeo ees eey ekc ekd eke eko eks eky en- enc end ene enk enn eno ens eny eo- eoc eod eoe eok eon eoo eos es- esc esd ese esk esn eso ess esy eyc eyd eye eyn eyo eys kcc kcd kce kck kcn kcs kdc kde kdk kdo kds kdy ke- kec ked kee kek ken keo kes key kkc kke kkk kkn kks kky kn- knc knd kne knk knn kno koc kod koe kok kon koo kos koy ksc ksd kse ksk ksn kso kss kyc kyd kye kyn kyo kys ncc ncd nce nck ncn nco ncs ndc ndd nde ndk ndn ndo nds ndy ne- nec ned nee nek nen neo nes ney nkc nke nkk nkn nko nks nky nnc nne nnk nnn nno nns no- noc nod noe nok non noo nos noy nsc nsd nse nsk nsn nso nss nsy nyc nyd nye nyk nyn nyo nys nyy oc- occ ocd ock ocn oco ocs odc odd ode odn odo ods oec oed oee oen oeo oes oey okc okd oke okk oko oks on- onc ond one onk onn ono ons ony oo- ooc ood ook oon ooo oos os- osc osd ose osk osn oso oss oyd oye oyo oys scc scd sce sck scn sco scs sdc sdd sde sdk sdn sdo sds sdy se- sec sed see sek sen seo ses sey sk- skc skd ske skk sko sks sky snc snd sne snk snn sno sns sny soc sod soe sok son soo sos soy ss- ssc ssd sse ssk ssn sso sss sy- syc syd sye syk syn sys ycc ycd yce yco ycs ycy yde ydn ydo yds ydy yec yed yee yek yen yeo yes yey ykk ykn ynd yne ynk ynn yns yny yoc yod yoe yok yon yoo yos yoy ysc yse ysk yso yss ysy yyc yye yys yyy