-er -ic c-- ccc ccd cce ccg cci ccr ccz cdc cdd cde cdg cdi cdr cdz ce- cec ced cee ceg cei cer cez cgc cgd cge cgg cgi cgr ci- cic cid cie cig cii cir crc crd cre crg cri crr crz cz- czc czd cze dcc dcd dce dcg dci dcr ddc ddd dde ddg ddi ddr ddz de- dec ded dee deg dei der dez dgc dgd dge dgg dgi dgr dgz di- dic did die dig dii dir diz drc drd dre drg dri drr drz dzd dze dzi dzr ec- ecc ecd ece ecg eci ecr ed- edc edd ede edg edi edr eec eed eee eeg eer egc egd ege egg egi egr eic eid eie eig eii eir erc erd ere erg eri err erz eze ezr ezz g-d gcc gcd gce gcg gci gcr gdc gdd gde gdi gdr ge- gec ged gee geg gei ger gez ggc ggd ggg ggi ggr ggz gic gid gie gig gii gir giz grc grd gre grg gri grr gzr i-d icc icd ice icg ici icr icz idc idd ide idg idi idr ie- iec ied iee ieg iei ier igc igd ige igg igi igr iic iid iie iii iir ir- irc ird ire irg iri irr ize izi izz rcc rcd rce rcg rci rcr rdc rdd rde rdg rdi rdr re- rec red ree reg rei rer rez rgc rgd rge rgg rgi rgr ric rid rie rig rii rir riz rrc rrd rrg rri rrr rze z-g zce zec zed zee zer zez zgg zgi zid zie zig zir ziz zzr zzz