def main():

    a, b = (int(i) for i in input().split())

    if a <= 0 and 0 <= b:

        print("Zero")

    elif a > 0:

        print("Positive")

    elif b < 0:

        if (b - a) % 2 == 0:

            print("Negative")

        else:

            print("Positive")

if __name__ == "__main__":

    main()
def main():

    a, b = (int(i) for i in input().split())

    if a*b <= 0:

        print("Zero")

    elif 0 < a:

        print("Positive")

    else:

        if (b-a+1) % 2 == 0:

            print("Positive")

        else:

            print("Negative")





if __name__ == '__main__':

    main()

def main():
    a, b = (int(i) for i in input().split())
    if a <= 0 and 0 <= b:
        print("Zero")
    elif a > 0:
        print("Positive")
    elif b < 0:
        if (b - a) % 2 == 0:
            print("Negative")
        else:
            print("Positive")


if __name__ == "__main__":
    main()

def main():
    a, b = (int(i) for i in input().split())
    if a * b <= 0:
        print("Zero")
    elif 0 < a:
        print("Positive")
    else:
        if (b - a + 1) % 2 == 0:
            print("Positive")
        else:
            print("Negative")


if __name__ == "__main__":
    main()

-    if a <= 0 and 0 <= b: +    if a * b <= 0: -    elif a > 0: +    elif 0 < a: -    elif b < 0: -        if (b - a) % 2 == 0: +    else: +        if (b - a + 1) % 2 == 0: +            print("Positive") +        else: -        else: -            print("Positive")