-er -ic c-- ccc cce cci ccl ccr ccs ce- cec cee cei cel ceq cer ces ci- cic cie cii cil ciq cir cis cl- clc cle cli cll clr cls cqc cqi cql cqs crc cre cri crl crq crr crs csc cse csi csl csq csr css ec- ecc ece eci ecl ecq ecr ecs eec eee eel eer ees eic eie eii eil eir eis elc ele eli ell elr els eqe eqq eqs erc ere eri erl erq err ers es- esc ese esi esl esq esr ess icc ice ici icl icq icr ics ie- iec iee iei iel ier ies iic iie iii iil iir iis il- ilc ile ili ill ilq ilr ils iqc iqe iqs ir- irc ire iri irl irq irr irs is- isc ise isi isl isq isr iss lcc lce lci lcl lcq lcr lcs lec lee lei lel leq ler les lic lie lii lil liq lir lis llc lle lli lll llq llr lls lqr lrc lri lrr lrs lsc lse lsi lsl lsq lsr lss qcc qci qcl qcs qec qee qic qie qil qir qis qls qqq qrc qre qri qrl qrs qsc qsi qsl qsr rcc rce rci rcl rcr rcs re- rec ree rei rel req rer res ric rie rii ril riq rir ris rlc rle rli rll rlr rls rqc rqs rrc rri rrl rrq rrr rrs rsc rse rsi rsl rsq rsr rss scc sce sci scl scr scs se- sec see sei sel seq ser ses sic sie sii sil siq sir sis slc sle sli sll slq slr sls sqi sql sqq sqr sqs sr- src sre sri srl srq srr srs ss- ssc sse ssi ssl ssq ssr sss