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.*;

class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int[] a = new int[2];
        for(int i = 0; i < 2; i++){
            a[i] = sc.nextInt();
        }
        sc.close();
        int[] b = new int[3];
        b[0] = a[0] + a[1];
        b[1] = a[0] - a[1];
        b[2] = a[0] * a[1];
        int MAX = MAX(b);
        System.out.println(MAX);
    }

    private static int MAX(int b[]){
        int MAX = b[0];
        if(b[0] < b[1]){
            MAX = b[1];
        }
        if(b[0] < b[2]){
            MAX = b[2];
        }
        return MAX;
    }
}