-er -ic c-- ccc cce ccg cci ccl ccr ccs cct ce- cec cee ceg cei cel cer ces cet cgc cge cgg cgi cgl cgr cgs cgt ci- cic cie cig cii cil cir cis cit cl- clc cle clg cli cll clr cls clt crc cre crg cri crl crr crs crt csc cse csg csi csl csr css cst ctc cte ctg cti ctl ctr cts ctt ec- ecc ece ecg eci ecl ecr ecs ect eec eee eeg eel eer ees eet egc ege egg egi egl egr egs egt eic eie eig eii eil eir eis eit elc ele elg eli ell elr els elt erc ere erg eri erl err ers ert es- esc ese esg esi esl esr ess est etc ete etg eti etl etr ets ett gcc gce gcg gci gcl gcr gcs gct ge- gec gee geg gei gel ger ges get ggc ggg ggi ggr ggs ggt gic gie gig gii gil gir gis git glc gle glg gli gll glr gls glt grc gre grg gri grl grr grs grt gsc gse gsg gsi gsl gsr gss gst gtc gte gtg gti gtl gtr gts gtt icc ice icg ici icl icr ics ict ie- iec iee ieg iei iel ier ies iet igc ige igg igi igl igr igs igt iic iie iii iil iir iis iit il- ilc ile ilg ili ill ilr ils ilt ir- irc ire irg iri irl irr irs irt is- isc ise isg isi isl isr iss ist itc ite itg iti itl its itt lcc lce lcg lci lcl lcr lcs lct lec lee leg lei lel ler les let lgc lge lgg lgi lgl lgr lgs lgt lic lie lig lii lil lir lis lit llc lle llg lli lll llr lls llt lrc lrg lri lrr lrs lrt lsc lse lsg lsi lsl lsr lss lst ltc lte ltg lti ltl ltr lts ltt rcc rce rcg rci rcl rcr rcs rct re- rec ree reg rei rel rer res ret rgc rge rgg rgi rgr rgs rgt ric rie rig rii ril rir ris rit rlc rle rlg rli rll rlr rls rlt rrc rrg rri rrl rrr rrs rrt rsc rse rsg rsi rsl rsr rss rst rtc rte rtg rti rtl rtr rts rtt scc sce scg sci scl scr scs sct se- sec see seg sei sel ser ses set sgc sge sgg sgi sgl sgr sgs sgt sic sie sig sii sil sir sis sit slc sle slg sli sll slr sls slt sr- src sre srg sri srl srr srs srt ss- ssc sse ssg ssi ssl ssr sss sst stc ste stg sti stl str sts stt tcc tce tcg tci tcl tcr tcs tct te- tec tee teg tei tel ter tes tet tgc tge tgg tgi tgl tgr tgs tgt tic tie tig tii til tir tis tit tlc tle tlg tli tll tlr tls tlt trc tre trg tri trl trr trs trt tsc tse tsg tsi tsl tsr tss tst ttc tte ttg tti ttl ttr tts ttt