-er -ic c-- ccc cce cci ccr ccs cct ccu ce- cec cee cei ceq cer ces cet ceu ci- cic cie cii ciq cir cis cit ciu cqc cqi cqs cqt crc cre cri crq crr crs crt cru csc cse csi csq csr css cst csu ctc cte cti ctq ctr cts ctt ctu cuc cue cui cuq cur cus cut cuu ec- ecc ece eci ecq ecr ecs ect ecu eec eee eer ees eet eic eie eii eir eis eit eiu eqe eqq eqs eqt equ erc ere eri erq err ers ert eru es- esc ese esi esq esr ess est esu etc ete eti etr ets ett etu eu- euc eue eui eur eus eut icc ice ici icq icr ics ict icu ie- iec iee iei ier ies iet iic iie iii iir iis iit iiu iqc iqe iqs iqt iqu ir- irc ire iri irq irr irs irt iru is- isc ise isi isq isr iss ist isu itc ite iti itq its itt itu iu- iuc iue iui iur ius iut qcc qci qcs qct qec qee qet qic qie qir qis qit qiu qqq qqu qrc qre qri qrs qrt qru qsc qsi qsr qst qtc qti qtq qtr qts qu- que qui qur qus qut rcc rce rci rcr rcs rct rcu re- rec ree rei req rer res ret reu ric rie rii riq rir ris rit rqc rqs rrc rri rrq rrr rrs rrt rru rsc rse rsi rsq rsr rss rst rsu rtc rte rti rtq rtr rts rtt rtu ruc rue rui rur rus rut ruu scc sce sci scr scs sct scu se- sec see sei seq ser ses set seu sic sie sii siq sir sis sit siu sqi sqq sqr sqs sr- src sre sri srq srr srs srt ss- ssc sse ssi ssq ssr sss sst ssu stc ste sti stq str sts stt stu suc sue sui suq sur sus sut suu tcc tce tci tcr tcs tct tcu te- tec tee tei teq ter tes tet teu tic tie tii tir tis tit tiu trc tre tri trq trr trs trt tru tsc tse tsi tsq tsr tss tst tsu ttc tte tti ttr tts ttt ttu tuc tue tui tur tus tut tuu ucc uce uci ucr ucs uct ucu uec uee uei uer ues uet uic uie uii uiq uir uis uit uiu ur- urc ure uri urr urs urt uru usc use usi usr uss ust usu utc ute uti utr uts utt utu uuc uue uur uus uut uuu