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(void)
{
    int A,B;
    int S1=0,S2=0,S3=0;
  
    scanf("%d%d",&A,&B);
    S1=A+B;
    S2=A-B;
    S3=A*B;
  if((S1>S2)&&(S2>S3)) printf("%d\n",S1);
  else if((S1>S3)&&(S3>S2)) printf("%d\n",S1);
  else if((S2>S1)&&(S1>S3)) printf("%d\n",S2);
  else if((S2>S3)&&(S3>S1)) printf("%d\n",S2);
  else if((S3>S1)&&(S1>S2)) printf("%d\n",S3);
  else if((S3>S2)&&(S2>S1)) printf("%d\n",S3);
  
  return 0;
}