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 JavaScript (node.js v5.12) (judge verdict: Accepted)

function main(input) {
  const args = input.split(' ');
  const a = parseInt(args[0], 10);
  const b = parseInt(args[1], 10);
  
  var max = a + b;
  if(max < a - b) {
    max = a - b;
  }
  if(max < a * b) {
    max = a * b;
  }
  console.log(max)
  
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));