-er -ic c-- ccc cce ccg cci cco ccr ccz ce- cec cee ceg cei ceo cer cez cgc cge cgg cgi cgo cgr ci- cic cie cig cii cio cir co- coc coe cog coi coo cor coz crc cre crg cri cro crr crz cz- czc cze czo ec- ecc ece ecg eci eco ecr eec eee eeg eeo eer egc ege egg egi ego egr eic eie eig eii eio eir eo- eoc eoe eog eoi eoo eor erc ere erg eri ero err erz eze ezo ezr ezz gcc gce gcg gci gco gcr ge- gec gee geg gei geo ger gez ggc ggg ggi ggo ggr ggz gic gie gig gii gio gir giz goc goe gog goi goo gor goz grc gre grg gri gro grr gzo gzr icc ice icg ici ico icr icz ie- iec iee ieg iei ier igc ige igg igi igo igr iic iie iii iio iir io- ioc ioe iog ioi ioo ior ir- irc ire irg iri iro irr ize izi izo izz o-i oc- occ ocg oci oco ocr ocz oec oee oeg oei oeo oer ogc oge ogg ogi ogo oic oie oii oio oir oiz oo- ooc oog ooi ooo oor or- orc ore org ori oro orr orz oze ozo ozz rcc rce rcg rci rco rcr re- rec ree reg rei reo rer rez rgc rge rgg rgi rgo rgr ric rie rig rii rio rir riz roc roe rog roi roo ror roz rrc rrg rri rrr rze rzo z-g zce zco zec zee zeo zer zez zgg zgi zie zig zio zir ziz zo- zoc zoe zog zoi zoo zor zro zzr zzz