import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String w = sc.next();
        String str[] = w.split("");
        Arrays.sort(str);
        boolean ans = true;
        int count = 1;
        for(int i = 0;i<w.length()-1;i++){
            
            if(str[i].equals(str[i+1])){
                
                count++;
                
            }else if(count%2==1){
                
                ans = false;
                break;
                
            }else{
                count = 1;
            }
        }
        if(count%2==1){
            ans = false;
        }
        if(ans) {
            System.out.println("Yes");
        }else {
            System.out.println("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