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 Kotlin (1.0.0) (judge verdict: Accepted)

import java.util.Scanner
 
fun main(args: Array<String>) {  
  val scan = Scanner(System.`in`)
  val a = scan.nextInt()
  val b = scan.nextInt()
  val add = a + b
  val sub = a - b
  val mul = a * b
  val max = listOf(add, sub, mul).max()
  println("$max")
}