import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map.Entry;

public class Main {
    public static void main(String[] args) {
        try {
            // 標準入力
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr);
            String w = br.readLine();
            HashMap<String, Integer> map = new HashMap<String, Integer>();
            for (int i = 0; i < w.length(); i++) {
                String tmp = w.substring(i, i + 1);
                if (map.containsKey(tmp)) {
                    int val = map.get(tmp);
                    map.put(tmp, val + 1);
                } else {
                    map.put(tmp, 1);
                }
            }
            boolean flag = true;
            for (Entry<String, Integer> ent : map.entrySet()) {
                int val = ent.getValue();
                if (val % 2 != 0) {
                    flag = false;
                    break;
                }
            }
            if (flag) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            }
        } catch (IOException e) {
            e.printStackTrace();
           }
    }
}

/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