import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  } main {
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String str = sc.next(); str sc.next() sc.next sc if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    } str.length() % 2 != 0 str.length() % 2 str.length() str.length str 2 0 {
      System.out.println("No");
      System.exit(0);
    } System.out.println("No") System.out.println System.out System System.out "No" System.exit(0) System.exit System 0 while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    } true {
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    } String tmp = str.replace(String.valueOf(str.charAt(0)), ""); tmp str.replace(String.valueOf(str.charAt(0)), "") str.replace str String.valueOf(str.charAt(0)) String.valueOf String str.charAt(0) str.charAt str 0 "" if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      } (str.length() - tmp.length()) % 2 != 0 (str.length() - tmp.length()) % 2 (str.length() - tmp.length()) str.length() str.length str tmp.length() tmp.length tmp 2 0 {
        System.out.println("No");
        System.exit(0);
      } System.out.println("No") System.out.println System.out System System.out "No" System.exit(0) System.exit System 0 if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      } tmp.length() == 0 tmp.length() tmp.length tmp 0 {
        System.out.println("Yes");
        System.exit(0);
      } System.out.println("Yes") System.out.println System.out System System.out "Yes" System.exit(0) System.exit System 0 str = tmp str tmp String[] args args public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  }
} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  }
} Main
import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    if(str.length() % 2 != 0){
      System.out.println("No");
      System.exit(0);
    }
    while(true){
      String tmp = str.replace(String.valueOf(str.charAt(0)), "");
      if((str.length() - tmp.length()) % 2 != 0){
        System.out.println("No");
        System.exit(0);
      }else if(tmp.length() == 0){
        System.out.println("Yes");
        System.exit(0);
      }
      str = tmp;
    }
  }
}