import java.util.*;
import static java.lang.System.*;
import static java.lang.Math.*;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(in);
String w=sc.next();
int[] a=new int[26];
    for (int i = 0; i < w.length(); i++) {
        int k=0;
        for (char j = 'a'; j <='z'; j++) {
         if(w.charAt(i)==j)a[k]++;
         k++;
        }
    }
    for (int i = 0; i < 26; i++) {
        if(a[i]%2==1){
            out.println("No");
            break;
        }
        if(i==25&&a[i]%2==0)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