Chocolate bar#9538
Petryk and Marichka are playing a game with a rectangular chocolate bar of size a \times b. They take turns breaking off exactly one piece of chocolate and eating it. The player who cannot make a move loses the game. Marichka always goes first because Petryk is a gentleman.
Your task is to determine the outcome of the game given the dimensions of the chocolate bar. Output 1 if Petryk will have to buy the next chocolate bar, meaning Marichka wins. Output 0 if Marichka loses.
The input consists of a single line with two natural numbers and , separated by a space. Each number does not exceed .
Print the result of the game.
Example 1