Problem:
Score : 100 points

Problem Statement

We have two integers: A and B.

Print the largest number among A + B, A - B, and A \times B.

Constraints

All values in input are integers.

-100 \leq A,\ B \leq 100

Input

Input is given from Standard Input in the following format:

A B

Output

Print the largest number among A + B, A - B, and A \times B.

Sample Input 1

-13 3

Sample Output 1

-10

The largest number among A + B = -10, A - B = -16, and A \times B = -39 is -10.

Sample Input 2

1 -33

Sample Output 2

34

The largest number among A + B = -32, A - B = 34, and A \times B = -33 is 34.

Sample Input 3

13 3

Sample Output 3

39

The largest number among A + B = 16, A - B = 10, and A \times B = 39 is 39.

Solution in Java7 (OpenJDK 1.7.0) (judge verdict: Wrong Answer)

import java.util.Scanner;

public class Main {
	private static String text;

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		String line = scanner.nextLine();
		String[] lines = line.split(" ");
		int A = Integer.parseInt(lines[0]);
		int B = Integer.parseInt(lines[1]);
		if (A > 0 && B > 0)
			System.out.println(A * B);
		else if(A < 0 && B < 0)
			System.out.println(A * B);
		else if (B >= 0)
			System.out.println(A + B);
		else
			System.out.println(A - B);
	}
}