import java.util.*;
public class Main {

	private static Scanner sc;

	public static void main(String[] args) {
		sc = new Scanner(System.in);
		String w =sc.next();
		for(int i=0;i<w.length();i++) {
			int sum=0;
			for(int j=0;j<w.length();j++) {
				if(w.charAt(i)==w.charAt(j)) sum=sum+1;
			}
			if(sum%2!=0) {
				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