output_description: Print the maximum number of operations that Snuke can perform.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
      a_1 a_2 a_3 ... a_N
attempt: N = int(input())
  A = list(int, input().split())
  counter = []
  for num in range(len(A)):
      counter.append(0)
  for num in range(len(A)):
      while A[num] % 2 == 0:
          A[num] = A[num] / 2
          counter[num] += 1
  print(sum(counter))
  
problem_description: Statement
  
  As AtCoder Beginner Contest 100 is taking place, the office of AtCoder, Inc.
  is decorated with a sequence of length N, a = {a_1, a_2, a_3, ..., a_N}.  
  Snuke, an employee, would like to play with this sequence.
  
  Specifically, he would like to repeat the following operation as many times as
  possible:
  
      
      
      For every i satisfying 1 \leq i \leq N, perform one of the following: "divide a_i by 2" and "multiply a_i by 3".  
      Here, choosing "multiply a_i by 3" for every i is not allowed, and the value of a_i after the operation must be an integer.
      
  
  At most how many operations can be performed?
samples: [{"input": "3\n    5 2 4", "output": "3\n    \n\nThe sequence is initially {5, 2, 4}. Three operations can be performed as\nfollows:\n\n  * First, multiply a_1 by 3, multiply a_2 by 3 and divide a_3 by 2. The sequence is now {15, 6, 2}.\n  * Next, multiply a_1 by 3, divide a_2 by 2 and multiply a_3 by 3. The sequence is now {45, 3, 6}.\n  * Finally, multiply a_1 by 3, multiply a_2 by 3 and divide a_3 by 2. The sequence is now {135, 9, 3}.\n\n* * *"}, {"input": "4\n    631 577 243 199", "output": "0\n    \n\nNo operation can be performed since all the elements are odd. Thus, the answer\nis 0.\n\n* * *"}, {"input": "10\n    2184 2126 1721 1800 1024 2528 3360 1945 1280 1776", "output": "39"}]