sgn function

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

Find the value of the sgn function:

s g n (x) = ⎩ ⎨ ⎧ 1, x > 0 0, x = 0 - 1, x < 0

Input

One integer $x (- 1 0^{9} \leq x \leq 1 0^{9})$ .

Print the value of the sgn function for the given value of $x$ .

Input #1

Answer #1

Input #2

Answer #2

Input #3

Answer #3

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