output_description: If \alpha is uppercase, print `A`; if it is lowercase, print `a`.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      α
attempt: num = int(input())
  d = {
      "a": 1,
      "b": 2,
      "c": 3,
      "d": 4,
      "e": 5,
      "f": 6,
      "g": 7,
      "h": 8,
      "i": 9,
      "j": 10,
      "k": 11,
      "l": 12,
      "m": 13,
      "n": 14,
      "o": 15,
      "p": 16,
      "q": 17,
      "r": 18,
      "s": 19,
      "t": 20,
      "u": 21,
      "v": 22,
      "w": 23,
      "x": 24,
      "y": 25,
      "z": 0,
  }
  op_d = {}
  for i, j in d.items():
      op_d[j] = i
  ans = ""
  for i in list(range(0, 12))[::-1]:
      if int(num / (26**i)) == 0:
          pass
      else:
          ans += op_d[int(num / (26**i))]
          num = num % 26**i
  print(ans)
  
problem_description: Statement
  
  An uppercase or lowercase English letter \alpha will be given as input. If
  \alpha is uppercase, print `A`; if it is lowercase, print `a`.
samples: [{"input": "B", "output": "A\n    \n\n`B` is uppercase, so we should print `A`.\n\n* * *"}, {"input": "a", "output": "a\n    \n\n`a` is lowercase, so we should print `a`."}]