import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    HashMap<String, Integer> map = new HashMap<String, Integer>();
    for(int i = 0; i < w.length(); i++) {
      String s = String.valueOf(w.charAt(i));
      if(map.containsKey(s)) {
        map.put(s, map.get(s) + 1);
      } else {
        map.put(s, 1);
      }
    }
    String ans = "Yes";
    for(String str : map.keySet()) {
      if(map.get(str) % 2 == 1) ans = "No";
    }
    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