import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String[] w = sc.next().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	}
} 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().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					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().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	} main {
		Scanner sc = new Scanner(System.in);
		String[] w = sc.next().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String[] w = sc.next().split(""); w sc.next().split("") sc.next().split sc.next() sc.next sc "" for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		} int i = 0; int i = 0; i 0 i < w.length i w.length w w.length i++ i++ i {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		} {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		} if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			} !w[i].equals(".") w[i].equals(".") w[i].equals w[i] w i "." {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			} int count = 0; count 0 String tem = w[i]; tem w[i] w i for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				} int j = i; int j = i; j i j < w.length j w.length w w.length j++ j++ j {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				} {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				} if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					} w[j].equals(tem) w[j].equals w[j] w j tem {
						count++;
						w[j] = ".";
					} count++ count w[j] = "." w[j] w j "." if (count % 2 != 0) {
					System.out.println("No");
					return;
				} count % 2 != 0 count % 2 count 2 0 {
					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().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					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().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String[] w = sc.next().split("");
		for (int i = 0; i < w.length; i++) {
			if (!w[i].equals(".")) {
				int count = 0;
				String tem = w[i];
				for (int j = i; j < w.length; j++) {
					if (w[j].equals(tem)) {
						count++;
						w[j] = ".";
					}
				}
				if (count % 2 != 0) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	}
}