-er -ic c-- ccc cce cci cck ccl ccr cct ccu ce- cec cee cei cek cel cer cet ceu ci- cic cie cii cik cil cir cit ciu ckc cki ckt cl- clc cle cli clk cll clr clt clu crc cre cri crk crl crr crt cru ctc cte cti ctk ctl ctr ctt ctu cuc cue cui cuk cul cur cut cuu ec- ecc ece eci eck ecl ecr ect ecu eec eee eek eel eer eet eic eie eii eik eil eir eit eiu ekc eke eki ekl ekr ekt eku elc ele eli elk ell elr elt elu erc ere eri erk erl err ert eru etc ete eti etk etl etr ett etu eu- euc eue eui eul eur eut icc ice ici ick icl icr ict icu ie- iec iee iei iek iel ier iet iic iie iii iil iir iit iiu ikc ike iki ikk ikl ikr ikt iku il- ilc ile ili ilk ill ilr ilt ilu ir- irc ire iri irk irl irr irt iru itc ite iti itk itl itt itu iu- iuc iue iui iur iut k-t kcc kce kci kck kcl kcr kct kcu ke- kec kee kei kek kel ker ket kic kie kii kik kil kir kit kiu kkc kke kki kkk kkl kkr kkt kku kl- klc kli klr klt klu krc kri krk krl krr krt kru ktc kte ktk ktl ktr ktt ktu kuc kue kui kuk kul kur kut kuu lcc lce lci lck lcl lcr lct lcu lec lee lei lek lel ler let leu lic lie lii lik lil lir lit liu lkl lkr lkt llc lle lli llk lll llr llt llu lrc lri lrk lrr lrt lru ltc lte lti ltk ltl ltr ltt ltu luc lue lui luk lul lur lut luu rcc rce rci rcl rcr rct rcu re- rec ree rei rek rel rer ret reu ric rie rii rik ril rir rit rkc rke rkk rkt rku rlc rle rli rll rlr rlt rlu rrc rri rrk rrl rrr rrt rru rtc rte rti rtk rtl rtr rtt rtu ruc rue rui ruk rur rut ruu tcc tce tci tck tcl tcr tct tcu te- tec tee tei tek tel ter tet teu tic tie tii tik til tir tit tiu tkc tke tkk tkl tkr tkt tlc tle tli tlk tll tlr tlt tlu trc tre tri trk trl trr trt tru ttc tte tti ttk ttl ttr ttt ttu tuc tue tui tuk tul tur tut tuu ucc uce uci uck ucl ucr uct ucu uec uee uei uel uer uet uic uie uii uil uir uit uiu ukc uke uki ukk ukl ukr uku ulc ule uli ulk ull ulr ult ulu ur- urc ure uri urk url urr urt uru utc ute uti utk utl utr utt utu uuc uue uur uut uuu