import java.util.Scanner;
public class Main{
  public static void main(String args[])
  {
    Scanner sc=new Scanner(System.in);
    boolean flag=true;
    String str=sc.next();
    for(int i=0;i<str.length();i++)
    {
      char ch=str.charAt(i);
      int count = 0;
      for(int j=0;j<str.length();j++)
      {
        if(ch==str.charAt(j))
        {
          count++;
        }
      }
      if(count%2!=0)
        flag=false;
    }
    if(flag)
      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