Description

Given a number N, determine whether it is positive, negative, or zero.

Input Format

A number N ($-10^9 \leq N \leq 10^9$)

Output Format

If N > 0, output "positive";

If N = 0, output "zero";

If N < 0, output "negative".

```input1 1 ``` ```output1 positive ``` ## 译文

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