fun main(array: Array<String>) {
    var (a, b) = readLine()!!.split(" ").map { it.toInt() }
    var cnt = 0
    var ans = ""
    while(a <= b) {
        if(a < 0) cnt++
        if(a == 0) {
            print("Zero")
            return
        }
        a++
    }
    ans = if(cnt % 2 == 0) {
        "Positive"
    }
    else {
        "Negative"
    }
    print(ans)
}