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 Python (3.8.2) (judge verdict: Accepted)

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

if (a>0 and b<0) or (a<0 and b>0):
  ans="Zero"
elif a==0 or b==0:
  ans="Zero"
elif a>0 and b>0:
  ans="Positive"
elif a<0 and b<0:
  if (a%2==0 and b%2==0) or (a%2!=0 and b%2!=0):
    ans="Negative"
  else:
    ans="Positive"
    
print(ans)