# Numbers of the same sign

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

Two nonzero integers $n$ and $m$ are given. Print $1$, if numbers $n$ and $m$ have the same sign and $0$ otherwise.

## Input

Two nonzero integers $n$ and $m$ , no more than $10_{9}$ by absolute value.

## Output

Print $1$, if numbers $n$ and $m$ have the same sign and $0$ otherwise.

## Examples

Input #1

Answer #1

Input #2

Answer #2

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