import java.util.HashMap;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String input = sc.next();
        HashMap<Character, Integer> count = new HashMap<>();
        for(Character c: input.toCharArray()){
            if(count.containsKey(c))
                count.replace(c, count.get(c) + 1);
            else
                count.put(c, 1);
        }
        for(HashMap.Entry<Character, Integer> entry : count.entrySet()){
        	if(entry.getValue()%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