-er c-- ccc cce cck cco ccr ccu ccw ce- cec cee cek ceo cer ceu cew ckc cko ckw co- coc coe cok coo cor cou cow crc cre crk cro crr cru crw cuc cue cuk cuo cur cuu cuw cw- cwc cwe cwk cwo cwr cwu ec- ecc ece eck eco ecr ecu ecw eec eee eek eeo eer eew ekc eke eko ekr eku eo- eoc eoe eok eoo eor eou eow erc ere erk ero err eru erw eu- euc eue eur ewc ewe ewk ewo ewr ewu eww kcc kce kck kcr kcu ke- kec kee kek keo ker kew kkc kke kkk kkr kku koc koe kok koo kor kou kow krc krk kro krr kru krw kuc kue kuk kur kuu kw- kwc kwk kwo kww oc- occ ock oco ocr ocu ocw oec oee oeo oer okc oke okk oko okr oku okw oo- ooc ook ooo oor oow or- orc ore ork oro orr oru ou- ouc oue ouk ouo our owc owe owk owo owu oww rcc rce rco rcr rcu rcw re- rec ree rek reo rer reu rew rkc rke rkk rko rku roc roe rok roo ror rou row rrc rrk rrr rru ruc rue ruk ruo rur ruu rwc rwe rwr rwu ucc uce uck uco ucr ucu ucw uec uee uer uew ukc uke ukk ukr uku uoc uoe uok uoo uor uow ur- urc ure urk uro urr uru urw uuc uue uur uuu uwc uwe uwr uww wcc wce wck wco wcr wcu wcw wec wee wek weo wer wew wkc wke wko wkr wkw woc woe wok woo wor wou wow wr- wrc wre wrk wro wrr wru wrw wuc wue wuo wur wwc wwe wwo wwu www