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# (.NET Core 3.1.201) (judge verdict: Accepted)

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

namespace Atc_0040
{
    class Program
    {
        static void Main(string[] args)
        {
            var S = Console.ReadLine();

            int A = int.Parse(S.Split(' ')[0]);
            int B = int.Parse(S.Split(' ')[1]);

            List<int> nums = new List<int>();

            nums.Add(A + B);
            nums.Add(A * B);
            nums.Add(A - B);

            Console.WriteLine(nums.Max());

        }
    }
}