Determine the Sign of a Number

Problem Description

Given an integer $N$, determine whether it is positive, zero, or negative.

Input Format

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

Output Format

If $N \gt 0$, output positive; if $N = 0$, output zero; if $N \lt 0$, output negative.

Sample Input

1

Sample Output

positive

Hint

• Three branches: positive, zero, negative.
• Equality testing uses two equals signs ==; one = is assignment — getting this wrong usually doesn't produce a compiler error, but the result is wrong.
• The output is lowercase words; print them exactly as shown.