output_description: Print `Yes` if w is beautiful. Print `No` otherwise.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      w
attempt: S = str(input())
  s_list = "abcdefghijklmnopqrstuvwxyz"
  n_list = []
  for i in range(26):
      n_list.append(0)
  for i in range(len(S)):
      n_list.index(S[i]) = n_list.index(S[i]) + 1
  num = 1
  for i in range(26):
      num = num * (n_list[i] + 1)
  if num % 2 == 1:
      print("Yes")
  else:
      print("No")
  
problem_description: 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.
samples: [{"input": "abaccaba", "output": "Yes\n    \n\n`a` occurs four times, `b` occurs twice, `c` occurs twice and the other\nletters occur zero times.\n\n* * *"}, {"input": "hthth", "output": "No"}]