c-- ccc cce cck cco ccp cct ccz ce- cec cee cek ceo cep cet cez ckc cko ckt co- coc coe cok coo cop cot coz cpc cpe cpk cpo cpp cpt cpz ctc cte ctk cto ctp ctt ctz cz- czc cze czk czo czt ec- ecc ece eck eco ect eec eee eek eeo eep eet ekc eke eko ekp ekt eo- eoc eoe eok eoo eop eot ep- epc epe epo epp ept epz etc ete etk eto etp ett etz eze ezo ezz k-t k-z kcc kce kck kcp kct ke- kec kee kek keo kep ket kez kkc kke kkk kkp kkt koc koe kok koo kop kot koz kpc kpe kpk kpo kpp kpt ktc kte ktk kto ktp ktt kzo oc- occ ock oco ocp oct ocz oec oee oeo oep oet okc oke okk oko okp oo- ooc ook ooo oop oot op- opc ope opk opo opp opt ot- otc ote otk oto otp ott otz oze ozo ozt ozz p-p pcc pce pck pco pcp pct pec pee pek peo pep pet pez pkc pke pko pkp pkt poc poe pok poo pop pot poz ppc ppe ppk ppo ppp ppt ppz pt- ptc pte ptk pto ptp ptt ptz pzc pzk pzp pzt tcc tce tck tco tcp tct te- tec tee tek teo tep tet tez tkc tke tkk tko tkp tkt tkz to- toc toe tok too top tot toz tpc tpe tpk tpo tpp tpt tpz ttc tte ttk tto ttp ttt tze zce zco zec zee zek zeo zep zet zez zo- zoc zoe zok zoo zot zpc zpe zpo zpp zpt zte zzt zzz