import java.util.*;
public class Main{
        public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
                int[] az = new int[26];
                String s = sc.next();
                Arrays.fill(az , 0);
                for(int i = 0 ; i < s.length() ; i++){
                        az[(int)(s.charAt(i) - 97)]++;
                }
                sc.close();
                boolean ebishu = true;
                for(int i = 0 ; i < 26 ; i++){
                        if(az[i] % 2 != 0) ebishu = false;
                }
                if(ebishu){
                        System.out.println("Yes");
                }else{
                        System.out.println("No");
                }
        }
}//a_97
//鶏になれ
/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