import java.util.Scanner;

public class Main {
    static Scanner in = new Scanner(System.in);

    public static void main(String[] args) {
        char[] cs = in.next().toCharArray();
        int[] a = new int[26];
        
        for(int i = 0; i < cs.length; i++){
            a[cs[i] - 'a']++;
        }
        boolean f = true;
        for(int i = 0; i < a.length; i++){
            if(a[i] % 2 == 1){
                f = false;
                break;
            }
        }
        System.out.println(f ? "Yes" : "No");
    }
}

/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