let input = readLine()!.characters.split(" ").map{Int(String($0))!}
let a = input[0]
let b = input[1]
if (a...b)~=0 {
  print("Zero")
} else if a<0 && (a...min(b,-1)).count%2>0 {
  print("Negative")
} else {
  print("Positive")
}