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 9.2.1) (judge verdict: Wrong Answer)

#include<stdio.h>
int main ()
{
 int A,B,a,b,c;
 scanf ("%d %d",&A,&B);
 a=A+B;
 b=A-B;
 c=A*B;
 if (A>=-100&&A<=100&&B>=-100&&B<=100)
 {
     if (a>=b&&a>=c)
     {
         printf ("%d\n",a);
     }
    if (b>=a&&b>=c)
     {
         printf ("%d\n",b);
     }
     if (c>=a&&c>=b)
     {
         printf ("%d\n",c);
     }
 }
 return 0;
}