-er -ic c-- ccc cce ccf cci ccp ccr cct ce- cec cee cef cei cep cer cet cfc cfe cff cfi cfp cfr cft ci- cic cie cif cii cip cir cit cpc cpe cpf cpi cpp cpr cpt crc cre crf cri crp crr crt ctc cte ctf cti ctp ctr ctt ec- ecc ece ecf eci ecr ect eec eee eef eep eer eet ef- efc efe eff efi efp efr eft eic eie eif eii eip eir eit ep- epc epe epf epi epp epr ept erc ere erf eri erp err ert etc ete etf eti etp etr ett fcc fce fcf fci fcp fcr fct fec fee fef fei fep fer fet ffc ffe fff ffi ffp ffr fft fic fie fif fii fip fir fit fpc fpe fpi fpp fpr fpt frc fre frf fri frp frr frt ftc fte ftf fti ftp ftr ftt i-f icc ice icf ici icp icr ict ie- iec iee ief iei iep ier iet ifc ife iff ifi ifp ifr ift iic iie iif iii iip iir iit ipc ipe ipf ipi ipp ipr ipt ir- irc ire irf iri irp irr irt itc ite itf iti itp itt p-p pcc pce pcf pci pcp pcr pct pec pee pef pei pep per pet pfc pfe pff pfi pfp pfr pft pic pie pif pii pip pir pit ppc ppe ppf ppi ppp ppr ppt prc pre prf pri prp prr prt pt- ptc pte ptf pti ptp ptr ptt rcc rce rcf rci rcp rcr rct re- rec ree ref rei rep rer ret rfc rfe rff rfi rfp rfr rft ric rie rif rii rip rir rit rpc rpe rpf rpi rpp rpr rpt rrc rrf rri rrp rrr rrt rtc rte rtf rti rtp rtr rtt tcc tce tcf tci tcp tcr tct te- tec tee tef tei tep ter tet tfc tfe tff tfi tfp tfr tft tic tie tif tii tip tir tit tpc tpe tpf tpi tpp tpr tpt trc tre trf tri trp trr trt ttc tte ttf tti ttp ttr ttt