-er -ic c-- ccc cce cci cck ccl ccr ccu ce- cec cee cei cek cel ceq cer ceu ci- cic cie cii cik cil ciq cir ciu ckc cki cl- clc cle cli clk cll clr clu cqc cqi cql crc cre cri crk crl crq crr cru cuc cue cui cuk cul cuq cur cuu ec- ecc ece eci eck ecl ecq ecr ecu eec eee eek eel eer eic eie eii eik eil eir eiu ekc eke eki ekl ekr eku elc ele eli elk ell elr elu eqe eqq equ erc ere eri erk erl erq err eru eu- euc eue eui eul eur icc ice ici ick icl icq icr icu ie- iec iee iei iek iel ier iic iie iii iil iir iiu ikc ike iki ikk ikl ikr iku il- ilc ile ili ilk ill ilq ilr ilu iqc iqe iqu ir- irc ire iri irk irl irq irr iru iu- iuc iue iui iur kcc kce kci kck kcl kcr kcu ke- kec kee kei kek kel ker kic kie kii kik kil kir kiu kkc kke kki kkk kkl kkr kku kl- klc kli klq klr klu kql krc kri krk krl krr kru kuc kue kui kuk kul kur kuu lcc lce lci lck lcl lcq lcr lcu lec lee lei lek lel leq ler leu lic lie lii lik lil liq lir liu lkl lkr llc lle lli llk lll llq llr llu lqr lrc lri lrk lrr lru luc lue lui luk lul lur luu qcc qci qcl qec qee qic qie qik qil qir qiu qki qqk qqq qqu qrc qre qri qrl qru qu- que qui qul qur rcc rce rci rcl rcr rcu re- rec ree rei rek rel req rer reu ric rie rii rik ril riq rir rkc rke rkk rku rlc rle rli rll rlr rlu rqc rrc rri rrk rrl rrq rrr rru ruc rue rui ruk rur ruu ucc uce uci uck ucl ucr ucu uec uee uei uel uer uic uie uii uil uiq uir uiu ukc uke uki ukk ukl ukr uku ulc ule uli ulk ull ulr ulu ur- urc ure uri urk url urr uru uuc uue uur uuu