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 <algorithm>
#define ll long long
#define Freopen(x) {freopen(#x".in","r",stdin);freopen(#x".out","w",stdout);}
using namespace std;
void init(),solve();
int a,b;
int main()
{
	init();
	solve();
	return 0;
}
void init()
{
	scanf("%d%d",&a,&b);
	return;
}
void solve()
{
	printf("%d",max(a+b,max(a-b,a*b)));
	return;
}