
import java.util.Scanner;

public class Main{

    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        int[] frq = new int[26];
        for(int i = 0 ; i < s.length() ; i++)
        {
            if( Character.isLowerCase(s.charAt(i)) )
            {
                frq[s.charAt(i)-'a']++;
            }
        }
        boolean flag = true;
        for(int i = 0 ; i < 26; i++)
            if(frq[i]%2!=0)
            {
                flag = false;
                break;
            }

        if(flag)
            System.out.println("Yes");
        else System.out.println("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