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 C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<iostream>
using namespace std;

int main()
{
	int a, b,A,S,M;
	scanf("%s %s", &a, &b);
	A = a + b;
	S = a - b;
	M = a*b;
	if (A >= S&&S >= M)
		cout << A;
	else if (A >= M&&M >= S)
		cout << A;
	else if (S >= A&&A >= M)
		cout << S;
	else if (S >= M&&M >= A)
		cout << S;
	else if (M >= S&&S >= A)
		cout << M;
	else
		return 0;
}