-er -ic -up c-- ccc cce cci ccp ccr cct ccu ccz ce- cec cee cei cep cer cet ceu cez ci- cic cie cii cip cir cit ciu cpc cpe cpi cpp cpr cpt cpu cpz crc cre cri crp crr crt cru crz ctc cte cti ctp ctr ctt ctu ctz cuc cue cui cup cur cut cuu cuz cz- czc cze czt 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 epz erc ere eri erp err ert eru erz etc ete eti etp etr ett etu etz eu- euc eue eui eup eur eut eze ezr ezz icc ice ici icp icr ict icu icz 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 itz iu- iuc iue iui iup iur iut iuz ize izi izu izz p-p pcc pce pci pcp pcr pct pcu pec pee pei pep per pet peu pez pic pie pii pip pir pit piu piz ppc ppe ppi ppp ppr ppt ppu ppz prc pre pri prp prr prt pru prz pt- ptc pte pti ptp ptr ptt ptu ptz puc pue pui pup pur put puu puz pzc pzp pzt rcc rce rci rcp rcr rct rcu re- rec ree rei rep rer ret reu rez ric rie rii rip rir rit riz rpc rpe rpi rpp rpr rpt rpu rpz rrc rri rrp rrr rrt rru rtc rte rti rtp rtr rtt rtu rtz ruc rue rui rup rur rut ruu ruz rze tcc tce tci tcp tcr tct tcu te- tec tee tei tep ter tet teu tez tic tie tii tip tir tit tiu tiz tpc tpe tpi tpp tpr tpt tpu tpz trc tre tri trp trr trt tru trz ttc tte tti ttp ttr ttt ttu tuc tue tui tup tur tut tuu tuz tze tzu 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 upz ur- urc ure uri urp urr urt uru urz utc ute uti utp utr utt utu utz uuc uue uur uut uuu uzi uzu zce zec zee zep zer zet zez zie zip zir zit ziz zpc zpe zpi zpp zpr zpt zpu zrp zte ztr zuc zui zur zut zuz zzr zzt zzz