Let w be a string consisting of lowercase letters. We will call w beautiful if the following condition is satisfied:

* Each lowercase letter of the English alphabet occurs even number of times in w.



You are given the string w. Determine if w is beautiful.

Constraints

* 1 \leq |w| \leq 100
* w consists of lowercase letters (`a`-`z`).

Input

The input is given from Standard Input in the following format:


w


Output

Print `Yes` if w is beautiful. Print `No` otherwise.

Examples

Input

abaccaba


Output

Yes


Input

hthth


Output

No
import java.util.Scanner;

public class Main {
	void run() {
		Scanner sc = new Scanner(System.in);

		char[] c = sc.next().toCharArray();
		int n = c.length;
		int[] count = new int['z' + 1];
		for (int i = 0; i < n; i++) {
			count[c[i]]++;
		}
		for (int i = 'a'; i <= 'z'; i++) {
			if (count[i] % 2 != 0) {
				System.out.println("No");
				return;
			}
		}
		System.out.println("Yes");
	}

	public static void main(String[] args) {
		new Main().run();
	}
}
