Problem:
Score : 200 points

Problem Statement

Let w be a string consisting of lowercase letters.
We will call w beautiful if the following condition is satisfied:

Each lowercase letter of the English alphabet occurs even number of times in w.

You are given the string w. Determine if w is beautiful.

Constraints

1 \leq |w| \leq 100

w consists of lowercase letters (a-z).

Input

The input is given from Standard Input in the following format:

w

Output

Print Yes if w is beautiful. Print No otherwise.

Sample Input 1

abaccaba

Sample Output 1

Yes

a occurs four times, b occurs twice, c occurs twice and the other letters occur zero times.

Sample Input 2

hthth

Sample Output 2

No

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;

public class Main{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        
        String w = sc.next();
        sc.close();
        
        int[] cnt = new int[26];
        for(int i = 0; i < w.length(); i++){
            cnt[(int)(w.charAt(i)-'a')]++;
        }
        for(int i = 0; i < 26; i++){
            if(cnt[i]%2 == 1){
                System.out.println("No");
                return;
            }
        }
        System.out.println("Yes");
    }
}