import java.util.*;
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      String s = sc.next();
      int count = 0;
      for(char c = 'a';c <= 'z';c++){
      	for(int i = 0;i < s.length();i++){
        	if(s.charAt(i)==c)count++;
        }
        if(count%2==1){
        	System.out.println("No");
            return;
        }
        count = 0;
      }
      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