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 Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.io.*;
import java.util.*;

public class Main{
	public static void main(String args[]) throws IOException{
		BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in));
		String str = br.readLine();
		String z[] = str.split(" ",0);
		int a = (int)Integer.parseInt(z[0]);
		int b = (int)Integer.parseInt(z[1]);
		if(a <= 0 && b >=0){
			System.out.println("Zero");
			System.exit(1);
		}
		if(a > 0) System.out.println("Positive");
		if(a < 0 && Math.abs(a)%2 == 1){
			System.out.println("Negative");
		} else if(a < 0 && Math.abs(a)%2 == 0){
			System.out.println("Positive");
		}
	}
}