import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class Main {
	static boolean bElapsed = false;
	List<String> list = new ArrayList<>();
	Set<String> set = new HashSet<>();
	Map<String,String> map = new HashMap<>();

	int[] cnt = new int[26];

	void solve(BufferedReader br) throws Exception {
		String line = br.readLine();
		for (int i=0; i<line.length(); i++) {
			char ch = line.charAt(i);
			cnt[ch-'a']++;
		}
		String rc = "Yes";
		for (int i=0; i<26; i++) {
			if (cnt[i] % 2 > 0) {
				rc = "No";
				break;
			}
		}
		pln(rc);
	}

	void p(char c) {
		System.out.print(c);
	}
	void pln(char c) {
		System.out.println(c);
	}
	void p(long l) {
		System.out.print(l);
	}
	void pln(long l) {
		System.out.println(l);
	}
	void p(String s) {
		System.out.print(s);
	}
	void pln(String s) {
		System.out.println(s);
	}
	public static void main(String[] args) throws Exception {
		long start = System.currentTimeMillis();
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		new Main().solve(br);
		long end = System.currentTimeMillis();
		if (bElapsed) {
			System.out.println((end-start) + "ms");
		}
	}
}

/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