output_description: Print the letter that follows C in alphabetical order.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      C
attempt: a = str(input())
  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",
  }
  print(A[a])
  
problem_description: Statement
  
  Given is a lowercase English letter C that is not `z`. Print the letter that
  follows C in alphabetical order.
samples: [{"input": "a", "output": "b\n    \n\n`a` is followed by `b`.\n\n* * *"}, {"input": "y", "output": "z\n    \n\n`y` is followed by `z`."}]