-er -ic c-- ccc ccd cce ccg cch cci cco ccr cdc cdd cde cdg cdh cdi cdo cdr ce- cec ced cee ceg ceh cei ceo cer cgc cgd cge cgg cgh cgi cgo cgr ch- chc chd che chg chh chi cho chr ci- cic cid cie cig cih cii cio cir co- coc cod coe cog coh coi coo cor crc crd cre crg crh cri cro crr dcc dcd dce dcg dci dco dcr ddc ddd dde ddg ddh ddi ddo ddr de- dec ded dee deg deh dei deo der dgc dgd dge dgg dgh dgi dgr dh- dhc dhd dhe dhh dhi dho dhr di- dic did die dig dih dii dio dir doc dod doe dog doh doi doo dor drc drd dre drg dri dro drr ec- ecc ecd ece ecg ech eci eco ecr ed- edc edd ede edg edh edi edo edr eec eed eee eeg eeo eer egc egd ege egg egh egi ego egr ehc ehd ehe ehg ehh ehi eho ehr eic eid eie eig eii eio eir eo- eoc eod eoe eog eoh eoi eoo eor erc erd ere erg erh eri ero err g-d gcc gcd gce gcg gch gci gco gcr gdc gdd gde gdh gdi gdo gdr ge- gec ged gee geg geh gei geo ger ggc ggd ggg ggh ggi ggo ggr ghc ghd ghe ghg ghh ghi gho ghr gic gid gie gig gih gii gio gir goc god goe gog goh goi goo gor grc grd gre grg grh gri gro grr h-i hcc hcd hce hcg hch hci hco hcr hdc hdd hde hdg hdh hdi hdo hdr he- hec hed hee heg heh hei heo her hgc hge hgg hgh hgi hgo hgr hhc hhd hhe hhg hhh hhi hho hhr hic hid hie hig hih hii hio hir hoc hod hoe hog hoh hoi hoo hor hr- hrc hrd hre hrg hrh hri hro hrr i-d icc icd ice icg ich ici ico icr idc idd ide idg idh idi ido idr ie- iec ied iee ieg iei ier igc igd ige igg igh igi igo igr ihc ihd ihe ihg ihh ihi iho ihr iic iid iie iih iii iio iir io- ioc iod ioe iog ioh ioi ioo ior ir- irc ird ire irg iri iro irr o-i oc- occ ocd ocg och oci oco ocr odc odd ode odg odh odi odo odr oec oed oee oeg oeh oei oeo oer ogc ogd oge ogg ogh ogi ogo ohc ohd ohe ohg ohh ohi oho ohr oic oid oie oii oio oir oo- ooc ood oog ooh ooi ooo oor or- orc ord ore org orh ori oro orr rcc rcd rce rcg rch rci rco rcr rdc rdd rde rdg rdh rdi rdo rdr re- rec red ree reg reh rei reo rer rgc rgd rge rgg rgh rgi rgo rgr rh- rhc rhd rhe rhg rhh rhi rho rhr ric rid rie rig rih rii rio rir roc rod roe rog roh roi roo ror rrc rrd rrg rrh rri rrr