import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();

		for(char x: S.toCharArray()){
			int count = 0;
			for(char s: S.toCharArray()){
				if(x == s){
					count++;
				}
			}
			if (count%2==1){
				System.out.println("No");
				return;
			}
		}
		System.out.println("Yes");
		return;
	}
}
/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