import java.util.Scanner;
import java.util.HashMap;
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String w = sc.next();
        char[] c = w.toCharArray();
        HashMap<Character,Integer> map = new HashMap<Character,Integer>();
        for(int i = 0;i < w.length();i++){
            if(map.containsKey(c[i])){
                map.put(c[i],map.get(c[i])+1);
                continue;
            }
            map.put(c[i],1);
        }
        for(Character key : map.keySet()){
            if(map.get(key) % 2 == 1){
                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