import java.util.*;

public class Main {
	public static void main(String[] args) {
		Scanner scn = new Scanner(System.in);
		Character[] let = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
		int[] enc = new int[30];
		String caca = scn.next();
		for(int i = 0;i<caca.length();i++) {
			for(int i2 = 0;i2<let.length;i2++) {
				if(let[i2]==caca.charAt(i)) {
					enc[i2]++;
				}
			}
		}boolean f = true;
		for(int i = 0;i<30;i++) {
			if(enc[i]%2==1)f=false;
		}
		if(f)System.out.println("Yes");
		else System.out.println("No");
		scn.close();
	}
}
/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