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: Runtime Error)

function Main(input) {
 var result = (A,B) => {
   if ( A+B > A-B) {
     if (A+B > A*B) {
       console.log(A+B);
   } else {
       console.log(A*B);
   }
  }else {
     if (A-B > A*B) {
       console.log(A-B);
   } else {
       console.log(A*B);
   }
  }
 };
  result(A + B);
}
Main(require("fs").readFileSync("/dev/stdin", "utf8").trim())