-er -ic c-- ccc cce ccg cci cco ccr ccu ce- cec cee ceg cei ceo cer ceu cgc cge cgg cgi cgo cgr cgu ci- cic cie cig cii cio cir ciu co- coc coe cog coi coo cor cou crc cre crg cri cro crr cru cuc cue cug cui cuo cur cuu ec- ecc ece ecg eci eco ecr ecu eec eee eeg eeo eer egc ege egg egi ego egr egu eic eie eig eii eio eir eiu eo- eoc eoe eog eoi eoo eor eou erc ere erg eri ero err eru eu- euc eue eug eui eur gcc gce gcg gci gco gcr gcu ge- gec gee geg gei geo ger geu ggc ggg ggi ggo ggr ggu gic gie gig gii gio gir giu goc goe gog goi goo gor gou grc gre grg gri gro grr gru gu- guc gue gug gui guo gur guu icc ice icg ici ico icr icu ie- iec iee ieg iei ier igc ige igg igi igo igr igu iic iie iii iio iir iiu io- ioc ioe iog ioi ioo ior iou ir- irc ire irg iri iro irr iru iu- iuc iue iug iui iur o-i oc- occ ocg oci oco ocr ocu oec oee oeg oei oeo oer ogc oge ogg ogi ogo oic oie oii oio oir oiu oo- ooc oog ooi ooo oor or- orc ore org ori oro orr oru ou- ouc oue oui ouo our rcc rce rcg rci rco rcr rcu re- rec ree reg rei reo rer reu rgc rge rgg rgi rgo rgr ric rie rig rii rio rir roc roe rog roi roo ror rou rrc rrg rri rrr rru ruc rue rug rui ruo rur ruu ucc uce ucg uci uco ucr ucu uec uee ueg uei uer ugc uge ugg ugi ugo ugr ugu uic uie uig uii uio uir uiu uoc uoe uog uoo uor ur- urc ure urg uri uro urr uru uuc uue uug uur uuu