import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String w = sc.next();
		int i, j, flag = 0;
		for(i = 0; i < w.length(); i++){
			int cnt = 0;
			for(j = 0; j < w.length(); j++){
				if(w.charAt(i) == w.charAt(j)){
					cnt++;
				}
			}
			if(cnt%2 != 0){
				flag = 1;
				System.out.println("No");
				break;
			}
		}
		if(flag == 0)System.out.println("Yes");
	}
}
/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