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 Go (1.6) (judge verdict: Accepted)

package main

import "fmt"

func getMax(nums ...int) (max int){
  max = nums[0]
  for i:=0; i<len(nums); i++{
    if nums[i] > max {
      max = nums[i]
    }
  }
  return
}

func main(){
  var a, b int
  fmt.Scan(&a, &b)
  fmt.Println(getMax(a + b, a * b, a - b))
}