import java.util.*;
public class Main {
		
	public static void main(String[] args) {
		Scanner in=new Scanner (System.in);
		String w = in.next();
		int c=0;
		;int con=0;
		for (int i = 0; i < w.length(); i++) {
			for (int j = 0; j < w.length(); j++) {
				if(w.charAt(i)==w.charAt(j)) {
					c++;
				}
			}
			if(c%2!=0) {
				System.out.println("No");
				con++;
				break;
			}
			
		}
		if(con==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