-er -ic -ji c-- c-j ccc cce cci ccj cck ccr ccu ce- cec cee cei cej cek cer ceu ci- cic cie cii cij cik cir ciu cjc cjk cjr ckc cki crc cre cri crj crk crr cru cuc cue cui cuk cur cuu ec- ecc ece eci ecj eck ecr ecu eec eee eek eer eic eie eii eij eik eir eiu ejc eji eju ekc eke eki ekr eku erc ere eri erk err eru eu- euc eue eui euj eur icc ice ici icj ick icr icu ie- iec iee iei iej iek ier iic iie iii iij iir iiu ijc ije iji ijk iju ikc ike iki ikk ikr iku ir- irc ire iri irj irk irr iru iu- iuc iue iui iur j-i jcc jce jci jck jcr jcu jec jee jei jej jek jer jeu jic jie jii jij jir jiu jjc jjj jjk jjr jju jkk jkr jku jrc jri jrk jrr jue jui juk jur kcc kce kci kck kcr kcu ke- kec kee kei kek ker kic kie kii kij kik kir kiu kjc kje kji kjr kju kkc kke kki kkk kkr kku krc kri krk krr kru kuc kue kui kuj kuk kur kuu rcc rce rci rcj rcr rcu re- rec ree rei rek rer reu ric rie rii rik rir rjc rjk rjr rkc rke rkk rku rrc rri rrk rrr rru ruc rue rui ruk rur ruu ucc uce uci ucj uck ucr ucu uec uee uei uer uic uie uii uir uiu ujc uji ukc uke uki ukk ukr uku ur- urc ure uri urk urr uru uuc uue uur uuu