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 C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <bits/stdc++.h>
#include <vector>
using namespace std;


 
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
  
  
  int a,b;
  cin >> a >> b;
  
  int add,sub,mul;
  add=a+b;
  sub=a-b;
  mul=a*b;
  int c;
  if(add>sub){
  	c=add;
  }else{
  	c=sub;
  }
  
  if(c<mul){
    c=mul;
  }
  cout << c << endl;

}