import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String w = sc.next();
        int[] c = new int[26];
        int i;
        for(i=0;i<26;i++){
            c[i]=0;
        }
        for(i=0;i<w.length();i++)
            c[(int)w.charAt(i)-97]++;
        for(i=0;i<26;i++){
            if(c[i]%2!=0){
                System.out.println("No");
                break;
            }
        }
        if(i==26) System.out.println("Yes");
    }
}

/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