-er c-- c-j ccc cce ccg ccj ccr ce- cec cee ceg cej cer cgc cge cgg cgr cjc cjg cjr crc cre crg crj crr ec- ecc ece ecg ecj ecr eec eee eeg eer egc ege egg egr ejc erc ere erg err gcc gce gcg gcr ge- gec gee geg ger ggc ggg ggj ggr gjc gje gjg gjr grc gre grg grj grr jcc jce jcr jec jee jeg jej jer jge jgr jjc jjg jjj jjr jrc jrg jrr rcc rce rcg rcj rcr re- rec ree reg rer rgc rge rgg rgr rjc rjg rjr rrc rrg rrr