-er c-- ccc ccd cce ccf cch cco ccr cdc cdd cde cdf cdh cdo cdr ce- cec ced cee cef ceh ceo cer cfc cfd cfe cff cfh cfo cfr ch- chc chd che chf chh cho chr co- coc cod coe cof coh coo cor crc crd cre crf crh cro crr dcc dcd dce dcf dco dcr ddc ddd dde ddf ddh ddo ddr de- dec ded dee def deh deo der dfc dfd dfe dff dfh dfo dfr dh- dhc dhd dhe dhf dhh dho dhr doc dod doe dof doh doo dor drc drd dre dro drr ec- ecc ecd ece ecf ech eco ecr ed- edc edd ede edf edh edo edr eec eed eee eef eeo eer ef- efc efd efe eff efh efo efr ehc ehd ehe ehf ehh eho ehr eo- eoc eod eoe eof eoh eoo eor erc erd ere erf erh ero err fcc fcd fce fcf fco fcr fdc fdd fde fdf fdh fdo fdr fec fed fee fef feh feo fer ffc ffd ffe fff ffh ffo ffr fhc fhe fhf fhh fho fhr foc foe fof foh foo for frc frd fre frf frh fro frr hcc hcd hce hcf hch hco hcr hdc hdd hde hdf hdh hdo hdr he- hec hed hee hef heh heo her hfc hfd hfe hff hfh hfo hfr hhc hhd hhe hhf hhh hho hhr hoc hod hoe hof hoh hoo hor hr- hrc hrd hre hrf hrh hro hrr oc- occ ocd ocf och oco ocr odc odd ode odf odh odo odr oec oed oee oef oeh oeo oer of- ofc ofd ofe off ofo ofr ohc ohd ohe ohf ohh oho ohr oo- ooc ood oof ooh ooo oor or- orc ord ore orf orh oro orr rcc rcd rce rcf rch rco rcr rdc rdd rde rdf rdh rdo rdr re- rec red ree ref reh reo rer rfc rfd rfe rff rfh rfo rfr rh- rhc rhd rhe rhf rhh rho rhr roc rod roe rof roh roo ror rrc rrd rrf rrh rrr