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: Wrong Answer)

using System;

namespace pro
{




    class MainClass
    {
        public static void Main()
        {
            string[] str = Console.ReadLine().Split(' ');
            int a = int.Parse(str[0]);
            int b = int.Parse(str[1]);
            if (a + b > a - b && a + b > a * b)
            {
                Console.WriteLine(a + b);
            }
            else if (a - b > a + b && a - b > a * b)
            {
                Console.WriteLine(a - b);
            }
            else if (a * b > a + b && a * b > a - b)
            {
                Console.WriteLine(a * b);
            }
            else if (a + b > a * b && a + b == a - b)
            {
                Console.WriteLine(a + b);
            }
            else if (a + b > a - b && a + b == a * b)
            {
                Console.WriteLine(a + b);
            }
            else if (a - b > a + b && a - b == a * b)
            {
                Console.WriteLine(a - b);
            }

        }
    }


}