import java.util.*;

public class Main{
    public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	String w = sc.next();
	int app[] = new int[26];
	Arrays.fill(app,0);
	for ( int i = 0; i < w.length(); i++ ) {
	    app[w.charAt(i)-'a']++;
	}
	boolean f = true;
	for ( int i = 0; i  < 26; i++ ) {
	    if ( app[i] % 2 == 1 ) {
		f = false;
		break;
	    }
	}
	if(f) 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