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

public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

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

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		}
	}
} Main public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		}
	} main {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		}
	} try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		} {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		} Scanner sc = new Scanner(System.in) Scanner sc = new Scanner(System.in) new Scanner(System.in) String w = sc.next().toLowerCase(); w sc.next().toLowerCase() sc.next().toLowerCase sc.next() sc.next sc String[] y = new String[w.length()]; y new String[w.length()] w.length() w.length w if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			} w.length() % 2 == 0 w.length() % 2 w.length() w.length w 2 0 {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				} int i = 0; int i = 0; i 0 i < w.length() i w.length() w.length w i++ i++ i {
					y[i] = String.valueOf(w.charAt(i));
				} {
					y[i] = String.valueOf(w.charAt(i));
				} y[i] = String.valueOf(w.charAt(i)) y[i] y i String.valueOf(w.charAt(i)) String.valueOf String w.charAt(i) w.charAt w i Arrays.sort(y) Arrays.sort Arrays y int ans = 0; ans 0 for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				} int i = 0; int i = 0; i 0 i < w.length() / 2 i w.length() / 2 w.length() w.length w 2 i++ i++ i {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				} {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				} if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					} y[2 * i].equals(y[2 * i + 1]) y[2 * i].equals y[2 * i] y 2 * i 2 i y[2 * i + 1] y 2 * i + 1 2 * i 2 i 1 {
						ans += 0;
					} ans += 0 ans 0 {
						ans += 1;
					} ans += 1 ans 1 if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				} ans == 0 ans 0 {
					System.out.println("Yes");
				} System.out.println("Yes") System.out.println System.out System System.out "Yes" {
					System.out.println("No");
				} System.out.println("No") System.out.println System.out System System.out "No" {

				System.out.println("No");

			} System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		}
	}
} public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

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

public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			String w = sc.next().toLowerCase();
			String[] y = new String[w.length()];

			if (w.length() % 2 == 0) {
				for (int i = 0; i < w.length(); i++) {
					y[i] = String.valueOf(w.charAt(i));
				}
				Arrays.sort(y);

				int ans = 0;

				for (int i = 0; i < w.length() / 2; i++) {

					if (y[2 * i].equals(y[2 * i + 1])) {
						ans += 0;
					} else {
						ans += 1;
					}
				}

				if (ans == 0) {
					System.out.println("Yes");
				} else {
					System.out.println("No");
				}

			} else {

				System.out.println("No");

			}
		}
	}
}