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>
int main(void)
{
    int A;
    int B;
    int add;
    int sub;
    int mul;
    int ans;
    
    scanf( "%d", &A );
    scanf( "%d", &B );
    
    add = A + B;
    sub = A - B;
    mul = A * B;
    
    if( add > sub )
    {
        ans = add;
    }
    else
    {
        ans = sub;
    }
    if( mul > ans )
    {
        ans = mul;
    }
    
    printf( "%d", ans);
}