-er -ic -up c-- ccc cce cci ccp ccr cct ccu ce- cec cee cei cep cer cet ceu ci- cic cie cii cip cir cit ciu cpc cpe cpi cpp cpr cpt cpu crc cre cri crp crr crt cru ctc cte cti ctp ctr ctt ctu cuc cue cui cup cur cut cuu ec- ecc ece eci ecr ect ecu eec eee eep eer eet eic eie eii eip eir eit eiu ep- epc epe epi epp epr ept epu erc ere eri erp err ert eru etc ete eti etp etr ett etu eu- euc eue eui eup eur eut icc ice ici icp icr ict icu ie- iec iee iei iep ier iet iic iie iii iip iir iit iiu ipc ipe ipi ipp ipr ipt ipu ir- irc ire iri irp irr irt iru itc ite iti itp itt itu iu- iuc iue iui iup iur iut p-p pcc pce pci pcp pcr pct pcu pec pee pei pep per pet peu pic pie pii pip pir pit piu ppc ppe ppi ppp ppr ppt ppu prc pre pri prp prr prt pru pt- ptc pte pti ptp ptr ptt ptu puc pue pui pup pur put puu rcc rce rci rcp rcr rct rcu re- rec ree rei rep rer ret reu ric rie rii rip rir rit rpc rpe rpi rpp rpr rpt rpu rrc rri rrp rrr rrt rru rtc rte rti rtp rtr rtt rtu ruc rue rui rup rur rut ruu tcc tce tci tcp tcr tct tcu te- tec tee tei tep ter tet teu tic tie tii tip tir tit tiu tpc tpe tpi tpp tpr tpt tpu trc tre tri trp trr trt tru ttc tte tti ttp ttr ttt ttu tuc tue tui tup tur tut tuu ucc uce uci ucp ucr uct ucu uec uee uei uep uer uet uic uie uii uip uir uit uiu up- upc upe upi upp upr upt upu ur- urc ure uri urp urr urt uru utc ute uti utp utr utt utu uuc uue uur uut uuu