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 (GCC 5.4.1) (judge verdict: Accepted)

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main()
{
	int A, B;

	scanf("%d",&A);
	scanf("%d",&B);

	int x = A + B;
	int y = A - B;
	int z = A * B;

	int a = 0;

	

	if (x > y) {
		if (x > z) {
			a=x;
		}
		else {
			a=z;
		}
	}

	if (x == y) {
		if (x >= z) {
			a=x;
		}
		else {
			a=z;
		}
	}

	if (y > z) {
		if (x >y) {
			a=x;
		}
		else {
			a=y;
		}
	}

	if (y == z) {
		if (x >= y) {
			a=x;
		}
		else {
			a=y;
		}
	}

	if (z > x) {
		if (z > y) {
			a=z;
		}
		else {
			a=y;
		}
	}

	if (z == x) {
		if (z >= y) {
			a=z;
		}
		else {
			a=y;
		}
	}


	printf("%d\n", a);

	


}