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;

public class ABC0137_A1v1 {
    private static void Main(string[] args) {
        var input = Console.ReadLine().Trim();
        Prepare(input);
    }

    private static void Prepare(string input) {
        var numStrs = input.Split();
        Compute(int.Parse(numStrs[0]), int.Parse(numStrs[1]));
    }

    private static void Compute(int numA, int numB) {
        var answer = Math.Max(numA + Math.Abs(numB), numA * numB);
        OutputAnswer(answer.ToString());
    }

    private static void OutputAnswer(string text) => Console.WriteLine(text);
}