output_description: Print the specified string (case-sensitive).
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      D
attempt: N = int(input())
  h = list(map(int, input().split()))
  h.append(0)
  count = 0
  while 1:
      flag = 0
      for i in range(N):
          if h[i] > 0:
              h[i] -= 1
              flag = 1
              if h[i + 1] == 0:
                  count += 1
              else:
                  pass
      if flag == 0:
          break
  print(count)
  
problem_description: Statement
  
  In some other world, today is December D-th.
  
  Write a program that prints `Christmas` if D = 25, `Christmas Eve` if D = 24,
  `Christmas Eve Eve` if D = 23 and `Christmas Eve Eve Eve` if D = 22.
samples: [{"input": "25", "output": "Christmas\n    \n\n* * *"}, {"input": "22", "output": "Christmas Eve Eve Eve\n    \n\nBe sure to print spaces between the words."}]