-er c-- ccc ccd cce ccf ccg ccn cco ccr cdc cdd cde cdf cdg cdn cdo cdr ce- cec ced cee cef ceg cen ceo cer cfc cfd cfe cff cfg cfn cfo cfr cgc cgd cge cgg cgn cgo cgr cn- cnc cnd cne cnf cng cnn cno cnr co- coc cod coe cof cog con coo cor crc crd cre crf crg crn cro crr dcc dcd dce dcf dcg dcn dco dcr ddc ddd dde ddf ddg ddn ddo ddr de- dec ded dee def deg den deo der dfc dfd dfe dff dfg dfn dfo dfr dgc dgd dge dgf dgg dgn dgr dnc dnd dne dnf dng dnn dno dnr doc dod doe dof dog don doo dor drc drd dre drg drn dro drr ec- ecc ecd ece ecf ecg ecn eco ecr ed- edc edd ede edf edg edn edo edr eec eed eee eef eeg een eeo eer ef- efc efd efe eff efg efo efr egc egd ege egf egg egn ego egr en- enc end ene enf eng enn eno enr eo- eoc eod eoe eof eog eon eoo eor erc erd ere erf erg ern ero err fcc fcd fce fcf fcg fcn fco fcr fdc fdd fde fdf fdg fdn fdo fdr fec fed fee fef feg fen feo fer ffc ffd ffe fff ffg ffn ffo ffr fgc fgd fge fgf fgg fgn fgr fnc fnd fne fnf fng fnn fnr foc foe fof fog fon foo for frc frd fre frf frg frn fro frr g-d gcc gcd gce gcf gcg gcn gco gcr gdc gdd gde gdf gdn gdo gdr ge- gec ged gee gef geg gen geo ger gfc gfd gfe gff gfo gfr ggc ggd ggg ggn ggo ggr gnc gnd gne gnf gnn gno gnr goc god goe gof gog gon goo gor grc grd gre grf grg grn gro grr ncc ncd nce ncf ncg ncn nco ncr ndc ndd nde ndf ndg ndn ndo ndr ne- nec ned nee nef neg nen neo ner nfc nfd nfe nff nfn nfo nfr ngc ngd nge ngf ngg ngn ngo nnc nne nnf nng nnn nno no- noc nod noe nof nog non noo nor nrc nrd nre nrf nrg nrn nro nrr oc- occ ocd ocf ocg ocn oco ocr odc odd ode odf odg odn odo odr oec oed oee oef oeg oen oeo oer of- ofc ofd ofe off ofg ofn ofo ofr ogc ogd oge ogf ogg ogn ogo on- onc ond one onf ong onn ono onr oo- ooc ood oof oog oon ooo oor or- orc ord ore orf org orn oro orr rcc rcd rce rcf rcg rcn rco rcr rdc rdd rde rdf rdg rdn rdo rdr re- rec red ree ref reg ren reo rer rfc rfd rfe rff rfg rfn rfo rfr rgc rgd rge rgf rgg rgn rgo rgr rnc rnd rng rnn rno rnr roc rod roe rof rog ron roo ror rrc rrd rrf rrg rrn rrr