# Task
 You are a magician. You're going to perform a trick.
 You have `b` black marbles and `w` white marbles in your magic hat, and an infinite supply of black and white marbles that you can pull out of nowhere. 
 You ask your audience to repeatedly remove a pair of marbles from your hat and, for each pair removed, you add one marble to the hat according to the following rule until there is only 1 marble left. 
 If the marbles of the pair that is removed are of the same color, you add a white marble to the hat. Otherwise, if one is black and one is white, you add a black marble.
 Given the initial number of black and white marbles in your hat, your trick is to predict the color of the last marble.
 Note: A magician may confuse your eyes, but not your mind ;-)
# Input/Output
 - `[input]` integer `b`
  Initial number of black marbles in the hat. 
  `1 <= b <= 10^9`
 - `[input]` integer `w`
  Initial number of white marbles in the hat. 
  `1 <= w <= 10^9`
 - `[output]` a string
  `"Black"` or `"White"` if you can safely predict the color of the last marble. If not, return `"Unsure"`.
def not_so_random(b,w):
    return ('White', 'Black')[b % 2]
def not_so_random(b,w):
    return ('White', 'Black')[b % 2]