Street numbers#6278

Street numbers

1 second
128 megabytes
Very easy

As you may be aware, houses with even street numbers are typically situated on one side of the street, while those with odd numbers are positioned on the opposite side. Determine whether the houses numbered and are situated on the same side of the street.

Input

Two integers and m~(1 \le n, m \le 100).

Output

Print if the houses with numbers and are located on the same side of the street, and otherwise.

Examples

Example 1

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