import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		String a = s.next();
		char[] ar = a.toCharArray();
		loop: for (int i = 0;i < ar.length;i++) {
			int y = 0;
			for (int m = 0;m < ar.length;m++) {
				if(ar[i] == ar[m]) {
					y += 1;
				}
				if(m == ar.length-1) {
					if(y % 2 == 1) {
						System.out.println("No");
						return;
						//break loop;
					}
				}
			}
		}
		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