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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;
class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String inputStr = sc.nextLine();
		String[] inputStrArray = inputStr.split(" ");
		int A = Integer.parseInt(inputStrArray[0]);
		int B = Integer.parseInt(inputStrArray[1]);
		int sum = A + B;
		int dif = A - B;
		int multi = A * B;
		int ans;
		if(sum>dif){
			if(sum>multi){
				ans = sum;
			}else{
				ans = multi;
			}
		}else{
			if(dif>multi){
				ans = dif;
			}else{
				ans = multi;
			}
		}
		System.out.println(ans);
	}
}