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

using System;

class main {
  static void Main() {
      int[] res = {1, 1, 1};
      String[] input = Console.ReadLine().Split(' ');
      int in1 = Convert.ToInt32(input[0]);
      int in2 = Convert.ToInt32(input[1]);
      res[0] = in1 + in2;
      res[1] = in1 - in2;
      res[2] = in1 * in2;
      Array.Sort(res);
      Console.WriteLine(res[2]);
  }
}