import java.util.Scanner

import scala.annotation.tailrec

object Util {
  @tailrec
  def loop(start: Int, end: Int)(f: Int => Unit) {
    if (start < end) {
      f(start)
      loop(start + 1, end)(f)
    }
  }
}

object Main {
  def main(args: Array[String]): Unit = {
    //nextLineとnextを同時に使ったら死ぬ
    val sc = new Scanner(System.in)
    val a, b = sc.nextInt()
    if (a * b < 0) {
      println("Zero")
    } else if (a + b < 0) {
      println("Negative")
    } else {
      println("Positive")
    }

  }
}
