-er -ic c-- ccc ccd cce ccg cci ccn cco ccr cdc cdd cde cdg cdi cdn cdo cdr ce- cec ced cee ceg cei cen ceo cer cgc cgd cge cgg cgi cgn cgo cgr ci- cic cid cie cig cii cin cio cir cn- cnc cnd cne cng cni cnn cno cnr co- coc cod coe cog coi con coo cor crc crd cre crg cri crn cro crr dcc dcd dce dcg dci dcn dco dcr ddc ddd dde ddg ddi ddn ddo ddr de- dec ded dee deg dei den deo der dgc dgd dge dgg dgi dgn dgr di- dic did die dig dii din dio dir dnc dnd dne dng dni dnn dno dnr doc dod doe dog doi don doo dor drc drd dre drg dri drn dro drr ec- ecc ecd ece ecg eci ecn eco ecr ed- edc edd ede edg edi edn edo edr eec eed eee eeg een eeo eer egc egd ege egg egi egn ego egr eic eid eie eig eii ein eio eir en- enc end ene eng eni enn eno enr eo- eoc eod eoe eog eoi eon eoo eor erc erd ere erg eri ern ero err g-d gcc gcd gce gcg gci gcn gco gcr gdc gdd gde gdi gdn gdo gdr ge- gec ged gee geg gei gen geo ger ggc ggd ggg ggi ggn ggo ggr gic gid gie gig gii gin gio gir gnc gnd gne gni gnn gno gnr goc god goe gog goi gon goo gor grc grd gre grg gri grn gro grr i-d icc icd ice icg ici icn ico icr idc idd ide idg idi idn ido idr ie- iec ied iee ieg iei ien ier igc igd ige igg igi ign igo igr iic iid iie iii iin iio iir in- inc ind ine ing ini inn ino inr io- ioc iod ioe iog ioi ion ioo ior ir- irc ird ire irg iri irn iro irr n-i ncc ncd nce ncg nci ncn nco ncr ndc ndd nde ndg ndi ndn ndo ndr ne- nec ned nee neg nei nen neo ner ngc ngd nge ngg ngi ngn ngo nic nid nie nig nii nin nio nir nnc nne nng nni nnn nno no- noc nod noe nog noi non noo nor nrc nrd nre nrg nri nrn nro nrr o-i oc- occ ocd ocg oci ocn oco ocr odc odd ode odg odi odn odo odr oec oed oee oeg oei oen oeo oer ogc ogd oge ogg ogi ogn ogo oic oid oie oii oin oio oir on- onc ond one ong oni onn ono onr oo- ooc ood oog ooi oon ooo oor or- orc ord ore org ori orn oro orr rcc rcd rce rcg rci rcn rco rcr rdc rdd rde rdg rdi rdn rdo rdr re- rec red ree reg rei ren reo rer rgc rgd rge rgg rgi rgn rgo rgr ric rid rie rig rii rin rio rir rnc rnd rng rni rnn rno rnr roc rod roe rog roi ron roo ror rrc rrd rrg rri rrn rrr