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

class Main {
	@SuppressWarnings("resource")
	public static void main(String args[]) {
		Scanner scanner = new Scanner(System.in);
		String w = scanner.next();
		String[] s = w.split("");
		Map<String, Integer> map = new HashMap<>();

		for (int i = 0; i < s.length; i++) {
			String target = s[i];
			if (map.containsKey(target)) {
				map.put(target, map.get(target) + 1);
			} else {
				map.put(target, 1);
			}
		}

		for (int i : map.values()) {
			if (i % 2 != 0) {
				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