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.
import collections
w = input()
w_counted = collections.Counter(w)
# print(len(w))
for v in w_counted.values():
    # print(v)
    if v % 2 != 0:
        print('NO')
        exit()
print('YES')


import collections
w = input()
w_counted = collections.Counter(w)
# print(len(w))
for v in w_counted.values():
    # print(v)
    if v % 2 != 0:
        print('No')
        exit()
print('Yes')
