import java.util.*;

public class Main {    
    
    public static void main(String[] args){
        
        Scanner sc = new Scanner(System.in);
        
        Map<Character,Integer> map = new HashMap<>();

        String w = sc.next();
        
        for(int i = 0 ;i < w.length();i++){
            if(!map.containsKey(w.charAt(i))){
                map.put(w.charAt(i),1);
            }else{
                int count = map.get(w.charAt(i));               
                count++;
                map.put(w.charAt(i),count);
            }
        }                

        String ans = "Yes";
        
        for(Character key : map.keySet() ){
           int count = map.get(key);
           if(count % 2 != 0){
               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