import java.util.*;

public class Main {
	public static void main(String[] a) {
		Scanner s = new Scanner(System.in);
		String text = s.nextLine();
		int [] counts = new int[26];
		char[] cs = text.toCharArray();
		for (char c : cs) {
			counts[c - 'a']++;
		}
		for (int count : counts) {
			if(count % 2 == 1) {
				System.out.println("No");
				return;
			}
		}
		System.out.println("Yes");
	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz