-er -ic c-- ccc cce cci ccl ccp ccr cct ce- cec cee cei cel cep cer cet ci- cic cie cii cil cip cir cit cl- clc cle cli cll clp clr clt cpc cpe cpi cpl cpp cpr cpt crc cre cri crl crp crr crt ctc cte cti ctl ctp ctr ctt ec- ecc ece eci ecl ecr ect eec eee eel eep eer eet eic eie eii eil eip eir eit elc ele eli ell elp elr elt ep- epc epe epi epl epp epr ept erc ere eri erl erp err ert etc ete eti etl etp etr ett icc ice ici icl icp icr ict ie- iec iee iei iel iep ier iet iic iie iii iil iip iir iit il- ilc ile ili ill ilp ilr ilt ipc ipe ipi ipl ipp ipr ipt ir- irc ire iri irl irp irr irt itc ite iti itl itp itt l-p lcc lce lci lcl lcp lcr lct lec lee lei lel lep ler let lic lie lii lil lip lir lit llc lle lli lll llp llr llt lpc lpe lpi lpl lpp lpr lpt lrc lri lrp lrr lrt ltc lte lti ltl ltp ltr ltt p-p pcc pce pci pcl pcp pcr pct pec pee pei pel pep per pet pic pie pii pil pip pir pit plc ple pli pll plp plr plt ppc ppe ppi ppl ppp ppr ppt prc pre pri prl prp prr prt pt- ptc pte pti ptl ptp ptr ptt rcc rce rci rcl rcp rcr rct re- rec ree rei rel rep rer ret ric rie rii ril rip rir rit rlc rle rli rll rlp rlr rlt rpc rpe rpi rpl rpp rpr rpt rrc rri rrl rrp rrr rrt rtc rte rti rtl rtp rtr rtt tcc tce tci tcl tcp tcr tct te- tec tee tei tel tep ter tet tic tie tii til tip tir tit tlc tle tli tll tlp tlr tlt tpc tpe tpi tpl tpp tpr tpt trc tre tri trl trp trr trt ttc tte tti ttl ttp ttr ttt