-er c-- ccc cce ccg ccl ccr ccs ccu ce- cec cee ceg cel cer ces ceu cgc cge cgg cgl cgr cgs cgu cl- clc cle clg cll clr cls clu crc cre crg crl crr crs cru csc cse csg csl csr css csu cuc cue cug cul cur cus cuu ec- ecc ece ecg ecl ecr ecs ecu eec eee eeg eel eer ees egc ege egg egl egr egs egu elc ele elg ell elr els elu erc ere erg erl err ers eru es- esc ese esg esl esr ess esu eu- euc eue eug eul eur eus gcc gce gcg gcl gcr gcs gcu ge- gec gee geg gel ger ges geu ggc ggg ggr ggs ggu glc gle glg gll glr gls glu grc gre grg grl grr grs gru gsc gse gsg gsl gsr gss gsu gu- guc gue gug gul gur gus guu lcc lce lcg lcl lcr lcs lcu lec lee leg lel ler les leu lgc lge lgg lgl lgr lgs lgu llc lle llg lll llr lls llu lrc lrg lrr lrs lru lsc lse lsg lsl lsr lss lsu luc lue lug lul lur lus luu rcc rce rcg rcl rcr rcs rcu re- rec ree reg rel rer res reu rgc rge rgg rgr rgs rlc rle rlg rll rlr rls rlu rrc rrg rrl rrr rrs rru rsc rse rsg rsl rsr rss rsu ruc rue rug rur rus ruu scc sce scg scl scr scs scu se- sec see seg sel ser ses seu sgc sge sgg sgl sgr sgs sgu slc sle slg sll slr sls slu sr- src sre srg srl srr srs ss- ssc sse ssg ssl ssr sss ssu suc sue sug sul sur sus suu ucc uce ucg ucl ucr ucs ucu uec uee ueg uel uer ues ugc uge ugg ugl ugr ugs ugu ulc ule ulg ull ulr uls ulu ur- urc ure urg url urr urs uru usc use usg usl usr uss usu uuc uue uug uur uus uuu