
import java.util.*;

class Main {
	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		char[] list = s.toCharArray();
		
		int cnt = 0;
		String ans = "Yes";
		for (int i = 0; i < list.length; i++) {
			for (int j = 0; j < list.length; j++) {
				if (list[i] == list[j]) {
					cnt++;
				}
			}
			if (cnt % 2 == 1) {
				ans = "No";
				break;
			}
		}
		
		System.out.println(ans);
	}
}
/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