The King in the Corner#4446

The King in the Corner

1 second
64 megabytes
Very easy

In the bottom left corner of a m \times n board, there is a king. Two players take turns moving the king one square either vertically upwards, horizontally to the right, or diagonally right-upwards. The player who cannot make a move loses.

Determine which player has a winning strategy.

Input

The input consists of two natural numbers and , each not exceeding 10^9.

Output

The program should output the number of the player ( or ) who has a winning strategy.

Examples

Example 1

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