import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Main {

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

		String keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

		sc.close();
	}
} import java.util.ArrayList; ArrayList java.util import java.util.Collections; Collections java.util import java.util.List; List 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 keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

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

		String keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);

		String keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

		sc.close();
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String keyBoard = sc.next(); keyBoard sc.next() sc.next sc int inputSize = keyBoard.length(); inputSize keyBoard.length() keyBoard.length keyBoard boolean beautifulFlag = true; beautifulFlag true List<String> wordList = new ArrayList<String>(); wordList new ArrayList<String>() for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		} int i = 0; int i = 0; i 0 i < inputSize i inputSize i++ i++ i {
			wordList.add(keyBoard.substring(i, i+1));

		} {
			wordList.add(keyBoard.substring(i, i+1));

		} wordList.add(keyBoard.substring(i, i+1)) wordList.add wordList keyBoard.substring(i, i+1) keyBoard.substring keyBoard i i+1 i 1 Collections.sort(wordList) Collections.sort Collections wordList for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		} int i = 0; int i = 0; i 0 i < wordList.size() i wordList.size() wordList.size wordList i++ i++ i {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		} {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		} String word = wordList.get(0); word wordList.get(0) wordList.get wordList 0 int wordCount = wordList.lastIndexOf(word) + 1; wordCount wordList.lastIndexOf(word) + 1 wordList.lastIndexOf(word) wordList.lastIndexOf wordList word 1 if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			} wordCount % 2 != 0 wordCount % 2 wordCount 2 0 {
				System.out.println("No");
				beautifulFlag = false;
				break;
			} System.out.println("No") System.out.println System.out System System.out "No" beautifulFlag = false beautifulFlag false break; for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			} int j = 0; int j = 0; j 0 j < wordCount j wordCount j++ j++ j {
				wordList.remove(0);
			} {
				wordList.remove(0);
			} wordList.remove(0) wordList.remove wordList 0 if (beautifulFlag) {
			System.out.println("Yes");

		} beautifulFlag {
			System.out.println("Yes");

		} System.out.println("Yes") System.out.println System.out System System.out "Yes" sc.close() sc.close sc String args[] args public class Main {

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

		String keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

		sc.close();
	}
} public class Main {

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

		String keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

		sc.close();
	}
} Main
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Main {

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

		String keyBoard = sc.next();
		int inputSize = keyBoard.length();
		boolean beautifulFlag = true;

		List<String> wordList = new ArrayList<String>();

		for (int i = 0; i < inputSize; i++) {
			wordList.add(keyBoard.substring(i, i+1));

		}

		Collections.sort(wordList);

		for (int i = 0; i < wordList.size(); i++) {
			String word = wordList.get(0);

			int wordCount = wordList.lastIndexOf(word) + 1;

			if (wordCount % 2 != 0) {
				System.out.println("No");
				beautifulFlag = false;
				break;
			}

			for (int j = 0; j < wordCount; j++) {
				wordList.remove(0);
			}
		}

		if (beautifulFlag) {
			System.out.println("Yes");

		}

		sc.close();
	}
}
