-er -ic -up c-- ccc cce cci ccp ccr ccs cct ccu ce- cec cee cei cep cer ces cet ceu ci- cic cie cii cip cir cis cit ciu cpc cpe cpi cpp cpr cps cpt cpu crc cre cri crp crr crs crt cru csc cse csi csp csr css cst csu ctc cte cti ctp ctr cts ctt ctu cuc cue cui cup cur cus cut cuu ec- ecc ece eci ecr ecs ect ecu eec eee eep eer ees eet eic eie eii eip eir eis eit eiu ep- epc epe epi epp epr eps ept epu erc ere eri erp err ers ert eru es- esc ese esi esp esr ess est esu etc ete eti etp etr ets ett etu eu- euc eue eui eup eur eus eut icc ice ici icp icr ics ict icu ie- iec iee iei iep ier ies iet iic iie iii iip iir iis iit iiu ipc ipe ipi ipp ipr ips ipt ipu ir- irc ire iri irp irr irs irt iru is- isc ise isi isp isr iss ist isu itc ite iti itp its itt itu iu- iuc iue iui iup iur ius iut p-p pcc pce pci pcp pcr pcs pct pcu pec pee pei pep per pes pet peu pic pie pii pip pir pis pit piu ppc ppe ppi ppp ppr pps ppt ppu prc pre pri prp prr prs prt pru ps- psc pse psi psp psr pss pst psu pt- ptc pte pti ptp ptr pts ptt ptu puc pue pui pup pur pus put puu rcc rce rci rcp rcr rcs rct rcu re- rec ree rei rep rer res ret reu ric rie rii rip rir ris rit rpc rpe rpi rpp rpr rps rpt rpu rrc rri rrp rrr rrs rrt rru rsc rse rsi rsp rsr rss rst rsu rtc rte rti rtp rtr rts rtt rtu ruc rue rui rup rur rus rut ruu scc sce sci scp scr scs sct scu se- sec see sei sep ser ses set seu sic sie sii sip sir sis sit siu spc spe spi spp spr sps spt spu sr- src sre sri srp srr srs srt ss- ssc sse ssi ssp ssr sss sst ssu stc ste sti stp str sts stt stu suc sue sui sup sur sus sut suu tcc tce tci tcp tcr tcs tct tcu te- tec tee tei tep ter tes tet teu tic tie tii tip tir tis tit tiu tpc tpe tpi tpp tpr tps tpt tpu trc tre tri trp trr trs trt tru tsc tse tsi tsp tsr tss tst tsu ttc tte tti ttp ttr tts ttt ttu tuc tue tui tup tur tus tut tuu ucc uce uci ucp ucr ucs uct ucu uec uee uei uep uer ues uet uic uie uii uip uir uis uit uiu up- upc upe upi upp upr ups upt upu ur- urc ure uri urp urr urs urt uru usc use usi usp usr uss ust usu utc ute uti utp utr uts utt utu uuc uue uur uus uut uuu