import java.util.Scanner;

public class Main {

	public static void main (String[] args) {
		Scanner scan = new Scanner(System.in);
		String[] w = scan.next().split("");
		for(String s1:w) {
			int c = 0;
			for(String s2:w) {
				if(s1.equals(s2))c++;
			}
			if(c%2==1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		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