-er -ic c-- ccc cce cci ccl ccp ccr ccs cct ce- cec cee cei cel cep cer ces cet ci- cic cie cii cil cip cir cis cit cl- clc cle cli cll clp clr cls clt cpc cpe cpi cpl cpp cpr cps cpt crc cre cri crl crp crr crs crt csc cse csi csl csp csr css cst ctc cte cti ctl ctp ctr cts ctt ec- ecc ece eci ecl ecr ecs ect eec eee eel eep eer ees eet eic eie eii eil eip eir eis eit elc ele eli ell elp elr els elt ep- epc epe epi epl epp epr eps ept erc ere eri erl erp err ers ert es- esc ese esi esl esp esr ess est etc ete eti etl etp etr ets ett icc ice ici icl icp icr ics ict ie- iec iee iei iel iep ier ies iet iic iie iii iil iip iir iis iit il- ilc ile ili ill ilp ilr ils ilt ipc ipe ipi ipl ipp ipr ips ipt ir- irc ire iri irl irp irr irs irt is- isc ise isi isl isp isr iss ist itc ite iti itl itp its itt l-p lcc lce lci lcl lcp lcr lcs lct lec lee lei lel lep ler les let lic lie lii lil lip lir lis lit llc lle lli lll llp llr lls llt lpc lpe lpi lpl lpp lpr lps lpt lrc lri lrp lrr lrs lrt lsc lse lsi lsl lsp lsr lss lst ltc lte lti ltl ltp ltr lts ltt p-p pcc pce pci pcl pcp pcr pcs pct pec pee pei pel pep per pes pet pic pie pii pil pip pir pis pit plc ple pli pll plp plr pls plt ppc ppe ppi ppl ppp ppr pps ppt prc pre pri prl prp prr prs prt ps- psc pse psi psl psp psr pss pst pt- ptc pte pti ptl ptp ptr pts ptt rcc rce rci rcl rcp rcr rcs rct re- rec ree rei rel rep rer res ret ric rie rii ril rip rir ris rit rlc rle rli rll rlp rlr rls rlt rpc rpe rpi rpl rpp rpr rps rpt rrc rri rrl rrp rrr rrs rrt rsc rse rsi rsl rsp rsr rss rst rtc rte rti rtl rtp rtr rts rtt scc sce sci scl scp scr scs sct se- sec see sei sel sep ser ses set sic sie sii sil sip sir sis sit slc sle sli sll slp slr sls slt spc spe spi spl spp spr sps spt sr- src sre sri srl srp srr srs srt ss- ssc sse ssi ssl ssp ssr sss sst stc ste sti stl stp str sts stt tcc tce tci tcl tcp tcr tcs tct te- tec tee tei tel tep ter tes tet tic tie tii til tip tir tis tit tlc tle tli tll tlp tlr tls tlt tpc tpe tpi tpl tpp tpr tps tpt trc tre tri trl trp trr trs trt tsc tse tsi tsl tsp tsr tss tst ttc tte tti ttl ttp ttr tts ttt