Positive Or Negative

Accept an integer as input. Print positive if it is greater than zero and negative if it is less than zero. You can assume that the input will be non-zero.

Input

A single line containing a non-zero integer.

Output

A single line: either positive or negative.

Example

Input:

5

Output:

positive

Your task

Write a complete program: read the input with input() and print the result with print().

Example

Input

5

Output

positive