-er c-- ccc cce ccf cch ccr ce- cec cee cef ceh cer cfc cfe cff cfh cfr ch- chc che chf chh chr crc cre crf crh crr ec- ecc ece ecf ech ecr eec eee eef eer ef- efc efe eff efh efr ehc ehe ehf ehh ehr erc ere erf erh err fcc fce fcf fcr fec fee fef feh fer ffc ffe fff ffh ffr fhc fhe fhf fhh fhr frc fre frf frh frr hcc hce hcf hch hcr he- hec hee hef heh her hfc hfe hff hfh hfr hhc hhe hhf hhh hhr hr- hrc hre hrf hrh hrr rcc rce rcf rch rcr re- rec ree ref reh rer rfc rfe rff rfh rfr rh- rhc rhe rhf rhh rhr rrc rrf rrh rrr