-er -ic c-- ccc cce ccf cci ccr ccs cct ccu ce- cec cee cef cei cer ces cet ceu cfc cfe cff cfi cfr cfs cft cfu ci- cic cie cif cii cir cis cit ciu crc cre crf cri crr crs crt cru csc cse csf csi csr css cst csu ctc cte ctf cti ctr cts ctt ctu cuc cue cuf cui cur cus cut cuu ec- ecc ece ecf eci ecr ecs ect ecu eec eee eef eer ees eet ef- efc efe eff efi efr efs eft eic eie eif eii eir eis eit eiu erc ere erf eri err ers ert eru es- esc ese esf esi esr ess est esu etc ete etf eti etr ets ett etu eu- euc eue euf eui eur eus eut fcc fce fcf fci fcr fcs fct fcu fec fee fef fei fer fes fet feu ffc ffe fff ffi ffr ffs fft ffu fic fie fif fii fir fis fit fiu frc fre frf fri frr frs frt fru fsc fse fsf fsi fsr fss fst fsu ftc fte ftf fti ftr fts ftt ftu fue fuf fui fur fus fut fuu i-f icc ice icf ici icr ics ict icu ie- iec iee ief iei ier ies iet ifc ife iff ifi ifr ifs ift ifu iic iie iif iii iir iis iit iiu ir- irc ire irf iri irr irs irt iru is- isc ise isf isi isr iss ist isu itc ite itf iti its itt itu iu- iuc iue iui iur ius iut rcc rce rcf rci rcr rcs rct rcu re- rec ree ref rei rer res ret reu rfc rfe rff rfi rfr rfs rft rfu ric rie rif rii rir ris rit rrc rrf rri rrr rrs rrt rru rsc rse rsf rsi rsr rss rst rsu rtc rte rtf rti rtr rts rtt rtu ruc rue ruf rui rur rus rut ruu scc sce scf sci scr scs sct scu se- sec see sef sei ser ses set seu sfc sfe sff sfi sfr sfs sft sfu sic sie sif sii sir sis sit siu sr- src sre srf sri srr srs srt ss- ssc sse ssf ssi ssr sss sst ssu stc ste stf sti str sts stt stu suc sue suf sui sur sus sut suu tcc tce tcf tci tcr tcs tct tcu te- tec tee tef tei ter tes tet teu tfc tfe tff tfi tfr tfs tft tfu tic tie tif tii tir tis tit tiu trc tre trf tri trr trs trt tru tsc tse tsf tsi tsr tss tst tsu ttc tte ttf tti ttr tts ttt ttu tuc tue tuf tui tur tus tut tuu ucc uce ucf uci ucr ucs uct ucu uec uee uef uei uer ues uet ufc ufe uff ufi ufr ufs uft ufu uic uie uif uii uir uis uit uiu ur- urc ure urf uri urr urs urt uru usc use usf usi usr uss ust usu utc ute utf uti utr uts utt utu uuc uue uur uus uut uuu