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)

#include<stdio.h>
#include<math.h>
int main() {
  int A,B,X,Y,Z;
  scanf("%d %d",&A,&B);
  X=A+B;
  Y=A-B;
  Z=A*B;
  if(X>=Y&&X>=Z) {
     printf("%d",X);
  } else if (Y>=X&&Y>=Z) {
      printf("%d",Y);
  } else if(Z>=X&&Z>=Y) {
     printf("%d",Z);  
  }
}