✎ 0-4. Positive or Negative

You are given two nonzero real numbers $a, b$ expressed in scientific notation. You'll need to write a program to determine whether the product $ab$ is positive or negative.

Input

Two numbers $a, b$.

Output

Output positive if their product is positive, or negative otherwise.

Technical Specification

• $0 < |a|, |b| \le 10^{10000}$.
• Both numbers will be in the form "$c$e$d$", or simply "$c$" if the exponent part is zero.
• The coefficient $c$ is a floating number with at most four digits after the decimal, and $1\le |c|<10$.
• The exponent $d$ will be an integer in the range $-10000\le d\le 10000$, it may or may not have a plus sign.

Sample Input 1

1.0001e+333 8.514e2668

Sample Output 1

positive

Sample Input 2

-3.333e-5 -3.333e-6

Sample Output 2

positive