Problem:
Problem Statement

You are given two integers a and b (a≤b). Determine if the product of the integers a, a+1, …, b is positive, negative or zero.

Constraints

a and b are integers.

-10^9≤a≤b≤10^9

Partial Score

In test cases worth 100 points, -10≤a≤b≤10.

Input

The input is given from Standard Input in the following format:

a b

Output

If the product is positive, print Positive. If it is negative, print Negative. If it is zero, print Zero.

Sample Input 1

1 3

Sample Output 1

Positive

1×2×3=6 is positive.

Sample Input 2

-3 -1

Sample Output 2

Negative

(-3)×(-2)×(-1)=-6 is negative.

Sample Input 3

-1 1

Sample Output 3

Zero

(-1)×0×1=0.

Solution in PyPy3 (2.4.0) (judge verdict: Accepted)

a,b = map(int,input().split())

if a>0 and b>0:
  print("Positive")
  exit()
elif a<=0 and b>=0:
  print("Zero")
  exit()
elif a==0 or b==0:
  print("Zero")
elif a<0 and b<0:
  if (abs(a-b)+1)%2==0:
    print("Positive")
    exit()
  else:
    print("Negative")
    exit()