import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	} main {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) StringBuilder w = new StringBuilder(sc.nextLine()); w new StringBuilder(sc.nextLine()) sc.close() sc.close sc int index = 0; index 0 while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		} true {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		} index = w.indexOf(w.substring(0, 1),1) index w.indexOf(w.substring(0, 1),1) w.indexOf w w.substring(0, 1) w.substring w 0 1 1 if (index == -1) {
				System.out.println("No");
				break;
			} index == -1 index -1 1 {
				System.out.println("No");
				break;
			} System.out.println("No") System.out.println System.out System System.out "No" break; w.delete(index, index+1) w.delete w index index+1 index 1 w.delete(0, 1) w.delete w 0 1 if (w.length() == 0) {
				System.out.println("Yes");
				break;
			} w.length() == 0 w.length() w.length w 0 {
				System.out.println("Yes");
				break;
			} System.out.println("Yes") System.out.println System.out System System.out "Yes" break; String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	}
} Main
import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder w = new StringBuilder(sc.nextLine());
		sc.close();
		
		int index = 0;

		while (true) {

			index = w.indexOf(w.substring(0, 1),1);
			if (index == -1) {
				System.out.println("No");
				break;
			}
			
			w.delete(index, index+1);
			w.delete(0, 1);

			if (w.length() == 0) {
				System.out.println("Yes");
				break;
			}
		}
	}
}