-er -ic c-- ccc cce cci cco ccr ccs ccu ce- cec cee cei ceo ceq cer ces ceu ci- cic cie cii cio ciq cir cis ciu co- coc coe coi coo coq cor cos cou cqc cqi cqo cqs crc cre cri cro crq crr crs cru csc cse csi cso csq csr css csu cuc cue cui cuo cuq cur cus cuu ec- ecc ece eci eco ecq ecr ecs ecu eec eee eeo eer ees eic eie eii eio eir eis eiu eo- eoc eoe eoi eoo eoq eor eos eou eqe eqq eqs equ erc ere eri ero erq err ers eru es- esc ese esi eso esq esr ess esu eu- euc eue eui eur eus icc ice ici ico icq icr ics icu ie- iec iee iei ier ies iic iie iii iio iir iis iiu io- ioc ioe ioi ioo ior ios iou iqc iqe iqs iqu ir- irc ire iri iro irq irr irs iru is- isc ise isi iso isq isr iss isu iu- iuc iue iui iur ius o-i oc- occ oci oco ocr ocs ocu oec oee oei oeo oer oes oic oie oii oio oir ois oiu oo- ooc ooi ooo oor oos oqo or- orc ore ori oro orr ors oru os- osc ose osi oso osq osr oss osu ou- ouc oue oui ouo our ous qcc qci qco qcs qec qee qeo qic qie qio qir qis qiu qoi qoo qor qos qqq qqu qrc qre qri qrs qru qsc qsi qso qsr qu- que qui quo qur qus rcc rce rci rco rcr rcs rcu re- rec ree rei reo req rer res reu ric rie rii rio riq rir ris roc roe roi roo ror ros rou rqc rqs rrc rri rrq rrr rrs rru rsc rse rsi rso rsq rsr rss rsu ruc rue rui ruo rur rus ruu scc sce sci sco scr scs scu se- sec see sei seo seq ser ses seu sic sie sii sio siq sir sis siu soc soe soi soo soq sor sos sou sqi sqq sqr sqs sr- src sre sri sro srq srr srs ss- ssc sse ssi sso ssq ssr sss ssu suc sue sui suo suq sur sus suu ucc uce uci uco ucr ucs ucu uec uee uei uer ues uic uie uii uio uiq uir uis uiu uoc uoe uoo uor uos ur- urc ure uri uro urr urs uru usc use usi uso usr uss usu uuc uue uur uus uuu