import java.util.*;
import java.io.*;
class Main {
    public static void main(String[] args) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String w = br.readLine();
        int[] c = new int[26];

        for (int i=0; i<w.length(); i++) {
            c[w.charAt(i)-'a']++;
        }
        String ans = "Yes";
        for (int i=0; i<26; i++) {
            if(c[i]%2!=0){
                ans = "No";
                break;
            }
        }

        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