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;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication21
{
	class Program
	{
		static void Main(string[] args)
		{

			string[] str = Console.ReadLine().Split(' ');
			int a = int.Parse(str[0]);
			int b = int.Parse(str[1]);
			int c = a + b;
			int d = a - b;
			int e = a * b;
			if (c > d )
				if (c > e)
					Console.WriteLine(c);
			if (d > e)
				if (d > c)
					Console.WriteLine(d);
			if (e > c)
				if (e > d)
					Console.WriteLine(e);
				


		}
	}
}