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: Wrong Answer)

import java.util.Scanner;
public class Main{
  public static void main(String[] args){
    Scanner in = new java.util.Scanner(System.in);
    int a = in.nextInt();
    int b = in.nextInt();
    
    int add = a+b;
    int sub = a-b;
    int p = a*b;
    if(add > sub && add > p){
      System.out.print(add);
    }else if(sub > add && sub > p){
      System.out.print(sub);
    }else {
      System.out.print(p);
    }
  }
}