-er -ic c-- ccc cce cci ccr ccs cct ccu ccv ce- cec cee cei cer ces cet ceu cev ci- cic cie cii cir cis cit ciu civ crc cre cri crr crs crt cru crv csc cse csi csr css cst csu csv ctc cte cti ctr cts ctt ctu ctv cuc cue cui cur cus cut cuu cuv cvc cve cvi cvr cvs cvt cvu cvv ec- ecc ece eci ecr ecs ect ecu ecv eec eee eer ees eet eev eic eie eii eir eis eit eiu eiv erc ere eri err ers ert eru erv es- esc ese esi esr ess est esu esv etc ete eti etr ets ett etu etv eu- euc eue eui eur eus eut euv evc eve evi evr evs evt evv i-v icc ice ici icr ics ict icu icv ie- iec iee iei ier ies iet iev iic iie iii iir iis iit iiu ir- irc ire iri irr irs irt iru irv is- isc ise isi isr iss ist isu isv itc ite iti its itt itu itv iu- iuc iue iui iur ius iut ivc ive ivi ivr ivs ivt ivu ivv rcc rce rci rcr rcs rct rcu rcv re- rec ree rei rer res ret reu rev ric rie rii rir ris rit riv rrc rri rrr rrs rrt rru rsc rse rsi rsr rss rst rsu rsv rtc rte rti rtr rts rtt rtu rtv ruc rue rui rur rus rut ruu ruv rvc rve rvi rvr rvs rvt rvu rvv scc sce sci scr scs sct scu scv se- sec see sei ser ses set seu sev sic sie sii sir sis sit siu siv sr- src sre sri srr srs srt srv ss- ssc sse ssi ssr sss sst ssu ssv stc ste sti str sts stt stu stv suc sue sui sur sus sut suu suv svc sve svi svr svs svt svu svv tcc tce tci tcr tcs tct tcu tcv te- tec tee tei ter tes tet teu tev tic tie tii tir tis tit tiu tiv trc tre tri trr trs trt tru trv tsc tse tsi tsr tss tst tsu tsv ttc tte tti ttr tts ttt ttu ttv tuc tue tui tur tus tut tuu tuv tvc tve tvi tvr tvs tvt tvu ucc uce uci ucr ucs uct ucu ucv uec uee uei uer ues uet uic uie uii uir uis uit uiu ur- urc ure uri urr urs urt uru usc use usi usr uss ust usu usv utc ute uti utr uts utt utu utv uuc uue uur uus uut uuu uvc uve uvs uvu uvv v-e vcc vce vci vcr vcs vct vcu vec vee vei ver ves vet veu vi- vic vie vii vir vis vit viu viv vrc vre vri vrr vrs vrt vru vsc vse vsi vsr vss vst vsu vsv vtc vte vti vtr vts vtt vtu vtv vue vur vus vut vuv vvc vvi vvr vvs vvt vvv