-er c-- ccc cce ccg ccr ccu ce- cec cee ceg cer ceu cgc cge cgg cgr cgu crc cre crg crr cru cuc cue cug cur cuu ec- ecc ece ecg ecr ecu eec eee eeg eer egc ege egg egr egu erc ere erg err eru eu- euc eue eug eur gcc gce gcg gcr gcu ge- gec gee geg ger geu ggc ggg ggr ggu grc gre grg grr gru gu- guc gue gug gur guu rcc rce rcg rcr rcu re- rec ree reg rer reu rgc rge rgg rgr rrc rrg rrr rru ruc rue rug rur ruu ucc uce ucg ucr ucu uec uee ueg uer ugc uge ugg ugr ugu ur- urc ure urg urr uru uuc uue uug uur uuu