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: def pokryj(plansza, x, y):
      koszt = 0
      if 2 * x >= y:
          for i in range(len(plansza) - 1):
              if plansza[i] == "." and plansza[i + 1] == ".":
                  plansza[i] == "x"
                  plansza[i + 1] == "x"
                  koszt += y
              elif plansza[i] == ".":
                  plansza[i] == "x"
                  koszt += x
      else:
          for i in range(len(plansza) - 1):
              if plansza[i] == ".":
                  plansza[i] == "x"
                  koszt += x
      return koszt
  
  
  print(pokryj("x.x.x.x..", 1, 2))
  
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`."}]