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 Python (3.8.2) (judge verdict: Accepted)

# -*- coding: utf-8 -*-

def main():

    w = input()
    setW = set(w)
    listW = list(w)
    n = len(listW)

    for i in setW:
        if listW.count(i) % 2 == 1:
            ans = 'No'
            break

        else:
            ans = 'Yes'

    print(ans)

if __name__ == "__main__":
    main()