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<stdio.h>
int main(void)
{
	int A,B,sum1,sum2,sum3,max;
	scanf("%d",&A);
	scanf("%d",&B);
	
	sum1=A+B;
	sum2=A-B;
	sum3=A*B;
	
	max=sum1;
	if(max<sum2)
		max=sum2;
	if(max<sum3)
		max=sum3;
	
	printf("%d",max);
	
	return 0;
}