-er -ic c-- ccc cce cci ccl ccr ccs ccu ce- cec cee cei cel cer ces ceu ci- cic cie cii cil cir cis ciu cl- clc cle cli cll clr cls clu crc cre cri crl crr crs cru csc cse csi csl csr css csu cuc cue cui cul cur cus cuu ec- ecc ece eci ecl ecr ecs ecu eec eee eel eer ees eic eie eii eil eir eis eiu elc ele eli ell elr els elu erc ere eri erl err ers eru es- esc ese esi esl esr ess esu eu- euc eue eui eul eur eus icc ice ici icl icr ics icu ie- iec iee iei iel ier ies iic iie iii iil iir iis iiu il- ilc ile ili ill ilr ils ilu ir- irc ire iri irl irr irs iru is- isc ise isi isl isr iss isu iu- iuc iue iui iur ius lcc lce lci lcl lcr lcs lcu lec lee lei lel ler les leu lic lie lii lil lir lis liu llc lle lli lll llr lls llu lrc lri lrr lrs lru lsc lse lsi lsl lsr lss lsu luc lue lui lul lur lus luu rcc rce rci rcl rcr rcs rcu re- rec ree rei rel rer res reu ric rie rii ril rir ris rlc rle rli rll rlr rls rlu rrc rri rrl rrr rrs rru rsc rse rsi rsl rsr rss rsu ruc rue rui rur rus ruu scc sce sci scl scr scs scu se- sec see sei sel ser ses seu sic sie sii sil sir sis siu slc sle sli sll slr sls slu sr- src sre sri srl srr srs ss- ssc sse ssi ssl ssr sss ssu suc sue sui sul sur sus suu ucc uce uci ucl ucr ucs ucu uec uee uei uel uer ues uic uie uii uil uir uis uiu ulc ule uli ull ulr uls ulu ur- urc ure uri url urr urs uru usc use usi usl usr uss usu uuc uue uur uus uuu