old_contents: #  File:       grains.py
  #  Purpose:    Write a program that calculates the number of grains of wheat
  #              on a chessboard given that the number on each square doubles.
  #  Programmer: Amal Shehu
  #  Course:     Exercism
  #  Date:       Sunday 18 September 2016, 05:25 PM
  
new_contents: #  File:       grains.py
  #  Purpose:    Write a program that calculates the number of grains of wheat
  #              on a chessboard given that the number on each square doubles.
  #  Programmer: Amal Shehu
  #  Course:     Exercism
  #  Date:       Sunday 18 September 2016, 05:25 PM
  
  board = [x for x in range(1, 65)]
  grains = [x*2 for x in range(1, 65)]
  
  def on_square():
      for x in range(1, 65):
          board.append(x)
  
subject: Add two lists with square and grain numbers