A biochemist wants to separate two peptides by ionexchange c

A biochemist wants to separate two peptides by ionexchange chromatography.At the pH of the mobile phase to be used on the column,one peptide (A) has a net charge of 53,due to the presence of more Glu and Asp residues than Arg,Lys,and His residues.Peptide B has a net charge of 31.Which peptide would elute first from a cation-exchange resin?Which would elute first from an anion-exchange resin?