import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int[] cnt = new int[26];
        int n = s.length();
        for (int i = 0; i < n; i++) {
            cnt[(int) (s.charAt(i) - 'a')]++;
        }
        for (int i : cnt) {
            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