-er -ic -up c-- ccc cce cci ccp ccr ccs cct ccu ce- cec cee cei cep ceq cer ces cet ceu ci- cic cie cii cip ciq cir cis cit ciu cpc cpe cpi cpp cpq cpr cps cpt cpu cqc cqi cqs cqt crc cre cri crp crq crr crs crt cru csc cse csi csp csq csr css cst csu ctc cte cti ctp ctq ctr cts ctt ctu cuc cue cui cup cuq cur cus cut cuu ec- ecc ece eci ecq ecr ecs ect ecu eec eee eep eer ees eet eic eie eii eip eir eis eit eiu ep- epc epe epi epp epq epr eps ept epu eqe eqp eqq eqs eqt equ erc ere eri erp erq err ers ert eru es- esc ese esi esp esq esr ess est esu etc ete eti etp etr ets ett etu eu- euc eue eui eup eur eus eut icc ice ici icp icq 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 iqc iqe iqs iqt iqu ir- irc ire iri irp irq irr irs irt iru is- isc ise isi isp isq isr iss ist isu itc ite iti itp itq its itt itu iu- iuc iue iui iup iur ius iut p-p pcc pce pci pcp pcq pcr pcs pct pcu pec pee pei pep per pes pet peu pic pie pii pip piq pir pis pit piu ppc ppe ppi ppp ppq ppr pps ppt ppu pqi pqq pqr pqs prc pre pri prp prq prr prs prt pru ps- psc pse psi psp psr pss pst psu pt- ptc pte pti ptp ptq ptr pts ptt ptu puc pue pui pup pur pus put puu qcc qci qcp qcs qct qec qee qep qet qic qie qip qir qis qit qiu qpc qpp qpr qps qqq qqu qrc qre qri qrp qrs qrt qru qsc qsi qsp qsr qst qtc qti qtq qtr qts qu- que qui qur qus qut rcc rce rci rcp rcr rcs rct rcu re- rec ree rei rep req rer res ret reu ric rie rii rip riq rir ris rit rpc rpe rpi rpp rpr rps rpt rpu rqc rqs rrc rri rrp rrq rrr rrs rrt rru rsc rse rsi rsp rsq rsr rss rst rsu rtc rte rti rtp rtq 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 seq ser ses set seu sic sie sii sip siq sir sis sit siu spc spe spi spp spq spr sps spt spu sqi sqq sqr sqs sr- src sre sri srp srq srr srs srt ss- ssc sse ssi ssp ssq ssr sss sst ssu stc ste sti stp stq str sts stt stu suc sue sui sup suq sur sus sut suu tcc tce tci tcp tcr tcs tct tcu te- tec tee tei tep teq ter tes tet teu tic tie tii tip tir tis tit tiu tpc tpe tpi tpp tpq tpr tps tpt tpu trc tre tri trp trq trr trs trt tru tsc tse tsi tsp tsq 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 uiq 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