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 (GCC 9.2.1) (judge verdict: Accepted)

#include<stdio.h>
int main ( )
{
	int A,B,x=0,y=0,z=0,max=0;
	scanf("%d%d",&A,&B);
	
	x=A+B;
	y=A-B;
	z=A*B;
	
	if(x>=y && x>=z)
	{
		max=x;
	}
	else if(y>=x && y>=z)
	{
		max=y;
	}
	
	else
	{
		max=z;
	}
	
	printf("%d\n",max);
	
	return 0;
	
}