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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;

class Program
{
 public static void Main()
 {
   int[] sum = new int[3];
   int max = 0;
   var num = Console.ReadLine().Split(' ');
   var A = int.Parse(num[0]);
   var B = int.Parse(num[1]);
   sum[0] = A + B;
   sum[1] = A - B;
   sum[2] = A * B;
   
   max = Math.Max(sum[0],sum[1]);
   max = Math.Max(max,sum[2]);
   
   Console.WriteLine(max);
 }
}