import java.util.*;

public class Main {
 	
  public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
    String s = sc.nextLine();
    sc.close();
	
    int[] map = new int[26];
    for (int c : s.toCharArray()) {
    	map[c-'a']++;
    }
    for (int freq : map) {
     	if (freq % 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