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Description

Given an integer $N$, determine if it is positive, zero, or negative. If $N>0$, output positive; if $N=0$, output zero; if $N<0$, output negative.

Input Format

One integer $N$ ($-10^9 \le N \le 10^9$).

Output Format

If $N>0$, output positive;

If $N=0$, output zero;

If $N<0$, output negative.

Sample

1

positive