import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String s = in.nextLine();
        char[] a = s.toCharArray();
        char[] alpha = new char[26];

        for (int i = 0; i < a.length; i++) {
            alpha[a[i] - 'a']++;
        }
        boolean flag = true;

        for (int n : alpha) {

            flag =(n%2==0);

            if(!flag) {
                break;
            }

        }
            if (flag) {
                System.out.println("Yes");
            } else System.out.println("No");
    }
}
/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