import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) throws IOException {
        execute();
    }

    private static void execute() throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println(checkBeautifulString(br.readLine()));
    }

    private static String checkBeautifulString(String string) {
        List<String> list = new ArrayList<>();
        for(char ch : string.toCharArray()) {
            String s = String.valueOf(ch);
            if (list.remove(s)) {
                continue;
            }
            list.add(s);
        }
        return list.isEmpty() ? "Yes" : "No";
    }
}
/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