-er c-- ccc cce ccg ccl ccr ce- cec cee ceg cel cer cgc cge cgg cgl cgr cl- clc cle clg cll clr crc cre crg crl crr ec- ecc ece ecg ecl ecr eec eee eeg eel eer egc ege egg egl egr elc ele elg ell elr erc ere erg erl err gcc gce gcg gcl gcr ge- gec gee geg gel ger ggc ggg ggr glc gle glg gll glr grc gre grg grl grr lcc lce lcg lcl lcr lec lee leg lel ler lgc lge lgg lgl lgr llc lle llg lll llr lrc lrg lrr rcc rce rcg rcl rcr re- rec ree reg rel rer rgc rge rgg rgr rlc rle rlg rll rlr rrc rrg rrl rrr