import java.util.Arrays;
import java.util.Scanner;

public class Main {

  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  }
} import java.util.Arrays; Arrays java.util import java.util.Scanner; Scanner java.util public class Main {

  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  }
} Main public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  } main {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String w = sc.next(); w sc.next() sc.next sc boolean[] even = new boolean[26]; even new boolean[26] 26 Arrays.fill(even, true) Arrays.fill Arrays even true for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    } int i = 0; int i = 0; i 0 i < w.length() i w.length() w.length w i++ i++ i {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    } {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    } char c = w.charAt(i); c w.charAt(i) w.charAt w i even[c - 'a'] = !even[c - 'a'] even[c - 'a'] even c - 'a' c 'a' !even[c - 'a'] even[c - 'a'] even c - 'a' c 'a' for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    } boolean b even {
      if (!b) {
        System.out.println("No");
        return;
      }
    } {
      if (!b) {
        System.out.println("No");
        return;
      }
    } if (!b) {
        System.out.println("No");
        return;
      } !b b {
        System.out.println("No");
        return;
      } System.out.println("No") System.out.println System.out System System.out "No" return; System.out.println("Yes") System.out.println System.out System System.out "Yes" String[] args args public class Main {

  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  }
} public class Main {

  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  }
} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main {

  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    String w = sc.next();
    boolean[] even = new boolean[26];
    Arrays.fill(even, true);

    for (int i = 0; i < w.length(); i++) {
      char c = w.charAt(i);
      even[c - 'a'] = !even[c - 'a'];
    }

    for (boolean b : even) {
      if (!b) {
        System.out.println("No");
        return;
      }
    }

    System.out.println("Yes");

  }
}