import java.util.*;
// warm-up
public class Main {

	static void solve() {
		Scanner sc = new Scanner(System.in);
		int[] c = new int[256];
		String tok = sc.next();
		boolean ok = true;
		for(char ch: tok.toCharArray()) c[(int)ch]++;
		for (char ch : tok.toCharArray()) if (c[(int)ch]%2!=0) { ok=false; break; }
		System.out.println(ok ? "Yes" : "No");
		sc.close();
	}

	public static void main(String args[]) {
		solve();
	}

}

/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