-er -up c-- ccc cce ccf ccp ccr cct ccu ce- cec cee cef cep cer cet ceu cfc cfe cff cfp cfr cft cfu cpc cpe cpf cpp cpr cpt cpu crc cre crf crp crr crt cru ctc cte ctf ctp ctr ctt ctu cuc cue cuf cup cur cut cuu ec- ecc ece ecf ecr ect ecu eec eee eef eep eer eet ef- efc efe eff efp efr eft ep- epc epe epf epp epr ept epu erc ere erf erp err ert eru etc ete etf etp etr ett etu eu- euc eue euf eup eur eut fcc fce fcf fcp fcr fct fcu fec fee fef fep fer fet feu ffc ffe fff ffp ffr fft ffu fpc fpe fpp fpr fpt fpu frc fre frf frp frr frt fru ftc fte ftf ftp ftr ftt ftu fue fuf fup fur fut fuu p-p pcc pce pcf pcp pcr pct pcu pec pee pef pep per pet peu pfc pfe pff pfp pfr pft pfu ppc ppe ppf ppp ppr ppt ppu prc pre prf prp prr prt pru pt- ptc pte ptf ptp ptr ptt ptu puc pue puf pup pur put puu rcc rce rcf rcp rcr rct rcu re- rec ree ref rep rer ret reu rfc rfe rff rfp rfr rft rfu rpc rpe rpf rpp rpr rpt rpu rrc rrf rrp rrr rrt rru rtc rte rtf rtp rtr rtt rtu ruc rue ruf rup rur rut ruu tcc tce tcf tcp tcr tct tcu te- tec tee tef tep ter tet teu tfc tfe tff tfp tfr tft tfu tpc tpe tpf tpp tpr tpt tpu trc tre trf trp trr trt tru ttc tte ttf ttp ttr ttt ttu tuc tue tuf tup tur tut tuu ucc uce ucf ucp ucr uct ucu uec uee uef uep uer uet ufc ufe uff ufp ufr uft ufu up- upc upe upf upp upr upt upu ur- urc ure urf urp urr urt uru utc ute utf utp utr utt utu uuc uue uur uut uuu