Problem:
Score : 100 points

Problem Statement

You are given two integers A and B.
Find the largest value among A+B, A-B and A \times B.

Constraints

-1000 \leq A,B \leq 1000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

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

Sample Input 1

3 1

Sample Output 1

4

3+1=4, 3-1=2 and 3 \times 1=3. The largest among them is 4.

Sample Input 2

4 -2

Sample Output 2

6

The largest is 4 - (-2) = 6.

Sample Input 3

0 0

Sample Output 3

0

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;
public class Main {
  public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();

    if ((A + B) <= (A - B)) {
      if ((A - B) <= (A * B)) {
        System.out.println(A * B);  
      } else {
        System.out.println(A - B);
      }
    } else {
      if ((A + B) <= (A * B)) {
        System.out.println(A * B);  
      } else {
        System.out.println(A + B);
      }
    }

  }
}