import java.util.*;
 
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        int[] count = new int[26];
        //int A = 'a';
        boolean test = true;
        
        for(int i=0; i<str.length(); i++){
            char c = str.charAt(i);
            count[c-97]++;
        }
        for(int i=0; i<26; i++){
            if(count[i]%2 != 0){
                test = false;
                break;
            }
        }
        if(test){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }
        //System.out.println(A);
    }
}
/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