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: a = input()
  
  dic = {
      "A": "a",
      "B": "b",
      "C": "c",
      "D": "d",
      "E": "e",
      "F": "f",
      "G": "g",
      "H": "h",
      "I": "i",
      "J": "j",
      "K": "k",
      "L": "l",
      "M": "m",
      "N": "n",
      "O": "o",
      "P": "p",
      "Q": "q",
      "R": "r",
      "S": "s",
      "T": "t",
      "U": "u",
      "V": "v",
      "W": "w",
      "X": "x",
      "Y": "y",
      "Z": "z",
  }
  
  if a in list(dic.keys()):
      print(dic[a])
      exit()
  
  print(a)
  
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`."}]