-er -ic c-- ccc cce cci cco ccr ccs cct ccu ce- cec cee cei ceo ceq cer ces cet ceu ci- cic cie cii cio ciq cir cis cit ciu co- coc coe coi coo coq cor cos cot cou cqc cqi cqo cqs cqt crc cre cri cro crq crr crs crt cru csc cse csi cso csq csr css cst csu ctc cte cti cto ctq ctr cts ctt ctu cuc cue cui cuo cuq cur cus cut cuu ec- ecc ece eci eco ecq ecr ecs ect ecu eec eee eeo eer ees eet eic eie eii eio eir eis eit eiu eo- eoc eoe eoi eoo eoq eor eos eot eou eqe eqq eqs eqt equ erc ere eri ero erq err ers ert eru es- esc ese esi eso esq esr ess est esu etc ete eti eto etr ets ett etu eu- euc eue eui eur eus eut icc ice ici ico icq icr ics ict icu ie- iec iee iei ier ies iet iic iie iii iio iir iis iit iiu io- ioc ioe ioi ioo ior ios iot iou iqc iqe iqs iqt iqu ir- irc ire iri iro irq irr irs irt iru is- isc ise isi iso isq isr iss ist isu itc ite iti ito itq its itt itu iu- iuc iue iui iur ius iut o-i oc- occ oci oco ocr ocs oct ocu oec oee oei oeo oer oes oet oic oie oii oio oir ois oit oiu oo- ooc ooi ooo oor oos oot oqo or- orc ore ori oro orr ors ort oru os- osc ose osi oso osq osr oss ost osu ot- otc ote oti oto otr ots ott otu ou- ouc oue oui ouo our ous out qcc qci qco qcs qct qec qee qeo qet qic qie qio qir qis qit qiu qoi qoo qor qos qqq qqu qrc qre qri qrs qrt qru qsc qsi qso qsr qst qtc qti qto qtq qtr qts qu- que qui quo qur qus qut rcc rce rci rco rcr rcs rct rcu re- rec ree rei reo req rer res ret reu ric rie rii rio riq rir ris rit roc roe roi roo ror ros rot rou rqc rqs rrc rri rrq rrr rrs rrt rru rsc rse rsi rso rsq rsr rss rst rsu rtc rte rti rto rtq rtr rts rtt rtu ruc rue rui ruo rur rus rut ruu scc sce sci sco scr scs sct scu se- sec see sei seo seq ser ses set seu sic sie sii sio siq sir sis sit siu soc soe soi soo soq sor sos sot sou sqi sqq sqr sqs sr- src sre sri sro srq srr srs srt ss- ssc sse ssi sso ssq ssr sss sst ssu stc ste sti sto stq str sts stt stu suc sue sui suo suq sur sus sut suu tcc tce tci tco tcr tcs tct tcu te- tec tee tei teo teq ter tes tet teu tic tie tii tio tir tis tit tiu to- toc toe toi too toq tor tos tot tou tqo trc tre tri tro trq trr trs trt tru tsc tse tsi tso tsq tsr tss tst tsu ttc tte tti tto ttr tts ttt ttu tuc tue tui tuo tur tus tut tuu ucc uce uci uco ucr ucs uct ucu uec uee uei uer ues uet uic uie uii uio uiq uir uis uit uiu uoc uoe uoo uor uos uot ur- urc ure uri uro urr urs urt uru usc use usi uso usr uss ust usu utc ute uti uto utr uts utt utu uuc uue uur uus uut uuu