import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		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 s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		System.out.println("Yes");
	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		System.out.println("Yes");
	} main {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		System.out.println("Yes");
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String s = sc.next(); s sc.next() sc.next sc int[] f = new int[26]; f new int[26] 26 for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		} int i = 0; int i = 0; i 0 i < s.length() i s.length() s.length s i++ i++ i {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		} {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		} f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'] f[s.charAt(i) - 'a'] f s.charAt(i) - 'a' s.charAt(i) s.charAt s i 'a' 1 - f[s.charAt(i) - 'a'] 1 f[s.charAt(i) - 'a'] f s.charAt(i) - 'a' s.charAt(i) s.charAt s i 'a' for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		} int x f {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		} {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		} if (x == 1) {
				System.out.println("No");
				System.exit(0);
			} x == 1 x 1 {
				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 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 s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		System.out.println("Yes");
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		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 s = sc.next();

		int[] f = new int[26];

		for (int i = 0; i < s.length(); i++) {
			f[s.charAt(i) - 'a'] = 1 - f[s.charAt(i) - 'a'];
		}

		for (int x : f) {
			if (x == 1) {
				System.out.println("No");
				System.exit(0);
			}
		}
		System.out.println("Yes");
	}

}
