fun main(arg: Array<String>) {
    val (a, b) = listOfInt()
    var ans: Int
    if (a == 0 || b == 0) {
        ans = 0
    } else if (a < 0 && 0 < b) {
        ans = 0
    } else if (a > 0) {
        ans = 1
    } else {
        ans = if ((b - a + 1) % 2 == 0) 1 else -1
    }
    print(ans)
}
fun next() = readLine()!!
fun nextInt() = Integer.parseInt(next())
fun listOfString() = next().split(" ")
fun listOfInt(delta: Int = 0) = listOfString().map { Integer.parseInt(it) + delta }
fun print(ans: Int) = println(if (ans > 0) "Positive" else if (ans < 0) "Negative" else "Zero")